MAX4190 [MAXIM]
Single/Triple, Low-Glitch, 250MHz, Current- Feedback Amplifiers with High-Speed Disable; 单/三路，低毛刺， 250MHz的，电流反馈放大器，带有高速禁止
| 型号： | MAX4190 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Single/Triple, Low-Glitch, 250MHz, Current- Feedback Amplifiers with High-Speed Disable |
| 文件： | 总20页 (文件大小：215K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1369; Rev 0; 7/98
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
8/MAX4190
Ge n e ra l De s c rip t io n
Fe a t u re s
The MAX4188/MAX4189/MAX4190 a re low-p owe r,
current-feedback video amplifiers featuring fast dis -
able/enable times and low switching transients. The
triple MAX4188 and the single MAX4190 are optimized
for applications with closed-loop gains of +2V/V (6dB)
or greater and provide a -3dB bandwidth of 200MHz
and 185MHz, respectively. The triple MAX4189 is opti-
mized for closed-loop applications with gains of +1V/V
(0dB) or greater and provides a 250MHz -3dB band-
width. These amplifiers feature 0.1dB gain flatness up to
80MHz with differential gain and phase errors of 0.03%
and 0.05°. These features make the MAX4188 family
ideal for video applications.
♦ Low Supply Current: 1.5mA per Amplifier
♦ Fast Enable/Disable Times: 120ns/35ns
♦ Very Low Switching Transient: 45mV
♦ High Speed
p-p
200MHz -3dB Small-Signal Bandwidth
(MAX4188, A ≥ +2)
VCL
250MHz -3dB Small-Signal Bandwidth
(MAX4189, A ≥ +1)
VCL
185MHz -3dB Small-Signal Bandwidth
(MAX4190, A ≥ +2)
VCL
♦ High Slew Rate
The MAX4188/MAX4189/MAX4190 operate from a +5V
single supply or from ±2.25V to ±5.5V dual supplies.
These amplifiers consume only 1.5mA per amplifier and
are capable of delivering ±55mA of output current, making
them ideal for portable and battery-powered equipment.
350V/µs (MAX4188, A
175V/µs (MAX4189, A
≥ +2)
≥ +1)
VCL
VCL
♦ Excellent Video Specifications
85MHz -0.1dB Gain Flatness (MAX4190)
30MHz -0.1dB Gain Flatness (MAX4189)
Differential Gain/Phase Errors
0.03%/0.05° (MAX4188)
The MAX4188/MAX4189/MAX4190 have a high-speed
disable/enable mode that isolates the inputs, places the
outputs in a high-impedance state, and reduces the
supply current to 450µA per amplifier. Each amplifier
can be disabled independently. High off isolation, low
s witc hing tra ns ie nt, a nd fa s t e na b le /d is a b le time s
(120ns/35ns) allow these amplifiers to be used in a
wide range of multiplexer applications. A settling time
of 22ns to 0.1%, a slew rate of up to 350V/µs, and low
distortion make these devices useful in many general-
purpose, high-speed applications.
♦ Low-Power Disable Mode
Inputs Isolated, Outputs Placed in High-Z
Supply Current Reduced to 450µA per Amplifier
♦ Fast Settling Time of 22ns to 0.1%
♦ Low Distortion
70dB SFDR (f = 5MHz, V = 2V , MAX4188)
c
O
p-p
The MAX4188/MAX4189 are available in a tiny 16-pin
QSOP package, and the MAX4190 is available in a
space-saving 8-pin µMAX package.
♦ Available in Space-Saving Packages
16-Pin QSOP (MAX4188/MAX4189)
8-Pin µMAX (MAX4190)
Ap p lic a t io n s
High-Definition Surveillance Video
Ord e rin g In fo rm a t io n
PART
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
14 SO
High-Speed Switching/Multiplexing
MAX4188ESD
MAX4188EEE
Portable/Battery-Powered Video/Multimedia
Systems
16 QSOP
Ordering Information continued at end of data sheet.
High-Speed Analog-to-Digital Buffers
Medical Imaging
S e le c t o r Gu id e
High-Speed Signal Processing
Professional Cameras
OPTIMIZED
FOR:
AMPLIFIERS
PER PKG.
PART
PIN-PACKAGE
CCD Imaging Systems
14-pin SO,
16-pin QSOP
MAX4188
A
V
≥ +2V/V
3
RGB Distribution Amplifiers
14-pin SO,
16-pin QSOP
MAX4189
MAX4190
A
≥ +1V/V
≥ +2V/V
3
1
V
Pin Configuration appears at end of data sheet.
A
V
8-pin µMAX/SO
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V to V )................................................+12V
14-Pin SO (derate 8.3mW/°C above +70°C) ..................667mW
16-Pin QSOP (derate 8.3mW/°C above +70°C)...............667mW
Operating Temperature Range............................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
CC
EE
IN_+, IN_-, DISABLE_ Voltage .........(V - 0.3V) to (V + 0.3V)
EE
CC
Differential Input Voltage (IN_+ to IN_-)..............................±1.5V
Maximum Current into IN_+ or IN_-..................................±10mA
Output Short-Circuit Current Duration........................Continuous
Continuous Power Dissipation (T = +70°C)
A
8-Pin SO (derate 5.88mW/°C above +70°C)...............471mW
8-Pin µMAX (derate 4.1mW/°C above +70°C) ............330mW
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS—Dual Supplies
(V = +5V; V = -5V; IN+ = 0; DISABLE_ ≥ 3.2V; MAX4188: A = +2V/V, R = R = 910Ω for R = 1kΩ and R = R = 560Ω for R
F
G
CC
EE
V
F
G
L
L
= 150Ω; MAX4189: A = +1V/V, R = 1600Ω for R = 1kΩ and R = 1100Ω for R = 150Ω; MAX4190: A = +2V/V, R = R = 1300Ω
F
L
V
F
L
V
F
G
for R = 1kΩ, R = R = 680Ω for R = 150Ω; T = T
to T , unless otherwise noted. Typical values are specified at
MAX
A
L
F
G
L
MIN
T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
±2.25
±3.1
TYP
MAX
UNITS
V
Operating Supply Voltage
Inferred from PSRR tests
Guaranteed by CMRR test
±5.5
Input Voltage Range
V
CM
±3.4
±1
V
Input Offset Voltage
V
OS
V
= 0 (Note 1)
±6
mV
µV/°C
mV
µA
CM
Input Offset Voltage Tempco
Input Offset Voltage Matching
Input Bias Current (Positive Input)
Input Bias Current (Negative Input)
Input Resistance (Positive Input)
Input Resistance (Negative Input)
Input Capacitance (Positive Input)
Common-Mode Rejection Ratio
TC
±10
±1
VOS
I
B+
±1
±10
±12
I
B-
±2
µA
8/MAX4190
-3.1V ≤ V ≤ 3.1V,
V + - V - ≤ 1V
IN IN
R
100
350
300
2.5
68
kΩ
CM
IN+
R
Ω
IN-
C
pF
IN
CMRR
-3.1V ≤ V ≤ 3.1V
56
1
dB
CM
-3.1V ≤ V
≤ 3.1V, R = 1kΩ
7
L
OUT
Open-Loop Transresistance
Output Voltage Swing
T
R
MΩ
-2.8V ≤ V
≤ 2.8V, R = 150Ω
0.3
2
L
OUT
R
R
R
= 1kΩ
±3.5
±3.0
±20
±4.0
±3.3
±55
±60
0.2
±0.8
5
L
L
L
V
SW
V
= 150Ω
= 30Ω
Output Current
I
mA
mA
Ω
OUT
Output Short-Circuit Current
Output Resistance
I
SC
R
OUT
OUT(OFF)
Disabled Output Leakage Current
Disabled Output Capacitance
DISABLE Low Threshold
DISABLE High Threshold
DISABLE Input Current
I
±5
µA
pF
V
DISABLE_ ≤ V , V
≤ ±3.5V (Note 2)
≤ ±3.5V
IL OUT
C
DISABLE_ ≤ V , V
OUT(OFF)
IL OUT
V
IL
(Note 3)
(Note 3)
V
CC
- 3
V
IH
V
CC
- 1.8
V
I
IN
0.1
75
2
µA
dB
dB
mA
mA
V
EE
≤ DISABLE_ ≤ V
CC
Power-Supply Rejection Ratio (V
)
PSRR+
PSRR-
V
EE
= -5V, V = 4.5V to 5.5V
60
60
CC
CC
Power-Supply Rejection Ratio (V
)
V
= 5V, V = -4.5V to -5.5V
CC EE
73
EE
Quiescent Supply Current (per Amplifier)
Disabled Supply Current (per Amplifier)
I
S
R
= open
L
1.5
0.45
1.85
0.65
I
DISABLE_ ≤ V , R = open
S(OFF)
IL
L
2
_______________________________________________________________________________________
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
8/MAX4190
DC ELECTRICAL CHARACTERISTICS—Single Supply
(V = +5V; V = 0; IN+ = 2.5V; DISABLE_ ≥ 3.2V; R to V / 2; MAX4188: A = +2V/V, R = R = 1.1kΩ for R = 1kΩ and R = R
CC
EE
L
CC
V
F
G
L
F
G
=
= 620Ω for R = 150Ω; MAX4189: A = +1V/V, R = 1500Ω for R = 1kΩ and R = 1600Ω for R = 150Ω; MAX4190: A = +2V/V, R
L
V
F
L
F
L
V
F
R
G
= 1300Ω for R = 1kΩ, R = R = 680Ω for R = 150Ω; T = T
to T , unless otherwise noted. Typical values are specified at
MAX
A
MIN
L
F
G
L
T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Supply Voltage
Input Voltage Range
Input Offset Voltage
Inferred from PSRR tests
4.5
5.5
V
1.6 to
3.4
1.3 to
3.7
V
Guaranteed by CMRR test
V
CM
V
OS
V
CM
= 2.5V (Note 1)
±1.5
±10
±1
±6.0
mV
µV/°C
mV
Input Offset Voltage Tempco
Input Offset Voltage Matching
TC
VOS
Input Bias Current
(Positive Input)
I
±1
±2
±10
±12
µA
µA
kΩ
Ω
B+
Input Bias Current
(Negative Input)
I
B-
Input Resistance
(Positive Input)
1.6V ≤ V ≤ 3.4V,
V
- V
≤ 1V
R
IN+
100
350
300
2.5
CM
IN+
IN-
Input Resistance
(Negative Input)
R
IN-
Input Capacitance
(Positive Input)
C
pF
dB
IN
Common-Mode Rejection Ratio
Open-Loop Transresistance
CMRR
1.5V ≤ V ≤ 3.5V
48
1.0
0.2
65
6.5
1.0
CM
1.3V ≤ V
≤ 3.7V, R = 1kΩ
L
OUT
T
MΩ
R
1.45V ≤ V
≤ 3.55V, R = 150Ω
L
OUT
1.2 to
3.8
0.9 to
4.1
R
= 1kΩ
L
Output Voltage Swing
V
V
SW
1.4 to
3.6
1.15 to
3.85
R
R
= 150Ω
= 30Ω
L
L
Output Current
I
±16
±28
±50
0.2
mA
mA
Ω
OUT
Output Short-Circuit Current
Output Resistance
I
SC
R
OUT
Disabled Output Leakage
Current
I
0.8
5
±5
- 3
µA
DISABLE_ ≤ V , 1.2V ≤ V
≤ 3.8V (Note 2)
≤ 3.8V
OUT
OUT(OFF)
IL
OUT
Disabled Output Capacitance
DISABLE Low Threshold
DISABLE High Threshold
DISABLE Input Current
C
pF
V
DISABLE_ ≤ V , 1.2V ≤ V
OUT(OFF)
IL
V
IL
(Note 3)
(Note 3)
V
CC
V
IH
V
CC
- 1.8
V
I
IN
0.1
75
2
µA
0 ≤ DISABLE_ ≤ V
CC
Power-Supply Rejection
PSRR+
V
CC
= 4.5V to 5.5V
60
dB
mA
mA
Ratio (V
)
CC
Quiescent Supply Current
(per Amplifier)
I
S
R
= open
L
1.5
1.85
0.65
Disabled Supply Current
(per Amplifier)
I
0.45
DISABLE_ ≤ V , R = open
S(OFF)
IL
L
_______________________________________________________________________________________
3
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
AC ELECTRICAL CHARACTERISTICS—Dual Supplies (MAX4188)
(V
CC
= +5V, V = -5V, V = 0, DISABLE_ ≥ 3V, A = +2V/V, R = R = 910Ω for R = 1kΩ or R = R = 560Ω for R = 150Ω;
F
G
EE
IN
V
F
G
L
L
T
A
= +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
200
160
0.25
0.1
60
MAX
UNITS
R
R
R
R
R
R
= 1kΩ
L
L
L
L
L
L
Small-Signal -3dB Bandwidth
Peaking
BW
MHz
-3dB
= 150Ω
= 1kΩ
dB
= 150Ω
= 1kΩ
Bandwidth for 0.1dB Flatness
Large-Signal -3dB Bandwidth
BW
MHz
MHz
0.1dB
= 150Ω
80
R
R
= 1kΩ
100
100
350
280
22
L
BW
V
OUT
= 2Vp-p
LS
= 150Ω
L
Positive slew
Negative slew
V/µs
V
= 4V step,
OUT
Slew Rate
SR
R
= 150Ω
L
Settling Time to 0.1%
Rise/Fall Time
t
V
OUT
= 4V step
= 4V step
ns
ns
S
Rise time
Fall time
10
V
OUT
12
R
R
R
R
R
R
R
R
R
R
= 1kΩ
70
L
L
L
L
L
L
L
L
L
L
f
V
= 5MHz,
C
Spurious-Free Dynamic Range
Second Harmonic Distortion
Third Harmonic Distortion
Differential Phase Error
SFDR
dB
dBc
dBc
= 2Vp-p
OUT
= 150Ω
= 1kΩ
56
-70
-66
-73
-56
0.05
0.32
0.03
0.04
2
f
= 5MHz,
C
V
= 2Vp-p
OUT
= 150Ω
= 1kΩ
f
= 5MHz,
C
V
= 2Vp-p
OUT
= 150Ω
= 1kΩ
8/MAX4190
DP
NTSC
NTSC
degrees
= 150Ω
= 1kΩ
Differential Gain Error
DG
%
= 150Ω
Input Noise Voltage Density
Input Noise Current Density
e
n
f = 10kHz
f = 10kHz
nV/√Hz
pA/√Hz
Positive input
Negative input
4
i
n
5
Output Impedance
Crosstalk
Z
f = 10MHz
4
Ω
dB
OUT
f = 10MHz, input referred
f = 10MHz, input referred
-55
-65
100
All Hostile Off Isolation
Gain Matching to 0.1dB
dB
MHz
Delay from DISABLE to 90% of V
,
OUT
Amplifier Enable Time
Amplifier Disable Time
t
120
35
ns
ns
ON
V
IN
= 0.5V
Delay from DISABLE to 10% of V
,
OUT
t
OFF
V
IN
= 0.5V
Positive transient
Negative transient
30
15
Disable/Enable Switching
Transient
mV
4
_______________________________________________________________________________________
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
8/MAX4190
AC ELECTRICAL CHARACTERISTICS—Dual Supplies (MAX4189)
(V = +5V, V = -5V, V = 0, DISABLE_ ≥ 3V, A = +1V/V, R = 1600Ω for R = 1kΩ and R = 1100Ω for R = 150Ω; T = +25°C,
CC
EE
IN
V
F
L
F
L
A
unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
250
210
1.4
0.15
7
MAX
UNITS
R
R
R
R
R
R
= 1kΩ
L
L
L
L
L
L
Small-Signal -3dB Bandwidth
Peaking
BW
MHz
-3dB
= 150Ω
= 1kΩ
dB
= 150Ω
= 1kΩ
Bandwidth for 0.1dB Flatness
Large-Signal -3dB Bandwidth
BW
MHz
MHz
0.1dB
= 150Ω
30
R
R
= 1kΩ
60
L
BW
V
OUT
= 2Vp-p
LS
= 150Ω
55
L
Positive slew
Negative slew
175
150
28
V/µs
V
= 4V step,
= 150Ω
OUT
Slew Rate
SR
R
L
Settling Time to 0.1%
Rise/Fall Time
t
V
OUT
= 4V step
= 4V step
ns
ns
S
Rise time
Fall time
20
V
OUT
22
R
R
R
R
R
R
R
R
R
R
= 1kΩ
65
L
L
L
L
L
L
L
L
L
L
f
V
= 5MHz,
C
Spurious-Free Dynamic Range
Second Harmonic Distortion
Third Harmonic Distortion
Differential Phase Error
SFDR
dB
dBc
= 2Vp-p
OUT
= 150Ω
= 1kΩ
51
-65
-63
-70
-51
0.02
0.66
0.07
0.18
2
f
= 5MHz,
C
V
= 2Vp-p
OUT
= 150Ω
= 1kΩ
f
= 5MHz,
C
dBc
V
= 2Vp-p
OUT
= 150Ω
= 1kΩ
DP
NTSC
NTSC
degrees
= 150Ω
= 1kΩ
Differential Gain Error
DG
%
= 150Ω
Input Noise Voltage Density
Input Noise Current Density
e
n
f = 10kHz
f = 10kHz
nV/√Hz
pA/√Hz
Positive input
Negative input
4
i
n
5
Output Impedance
Crosstalk
Z
f = 10MHz
4
Ω
dB
OUT
f = 10MHz, input referred
f = 10MHz, input referred
-57
-55
24
All Hostile Off Isolation
Gain Matching to 0.1dB
dB
MHz
Delay from DISABLE to 90% of V
,
OUT
Amplifier Enable Time
Amplifier Disable Time
t
120
40
ns
ns
ON
V
IN
= 0.5V
Delay from DISABLE to 10% of V
,
OUT
t
OFF
V
IN
= 0.5V
Positive transient
Negative transient
70
Disable/Enable Switching
Transient
mV
110
_______________________________________________________________________________________
5
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
AC & DYNAMIC PERFORMANCE—Dual Supplies (MAX4190)
(V
CC
= + 5V, V
= -5V, V = 0, A = + 2V/V; R = R = 1300Ω for R = 1kΩ a nd R = R = 680Ω for R = 150Ω,
EE
IN
V
G
F
L
F
G
L
T
A
= +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
185
150
0.1
0.1
85
MAX
UNITS
R
R
R
R
R
R
= 1kΩ
L
L
L
L
L
L
Small-Signal -3dB Bandwidth
Peaking
BW
MHz
SS
= 150Ω
= 1kΩ
dB
= 150Ω
= 1kΩ
Bandwidth for 0.1dB Flatness
Large-Signal -3dB Bandwidth
BW
MHz
MHz
LS
= 150kΩ
75
R
R
= 1kΩ
95
L
L
BW
V
O
= 2Vp-p
LS
= 150Ω
95
Positive slew
Negative slew
340
270
22
V
= 4V step,
= 150Ω
O
Slew Rate
SR
V/µs
ns
R
L
Settling Time to 0.1%
Rise/Fall Time
t
S
V
O
= 2V step
t
R
Rise time
Fall time
10
V
= 4V step,
= 150Ω
O
ns
R
L
t
12
F
R
R
R
R
R
R
R
R
R
R
= 1kΩ
61
L
L
L
L
L
L
L
L
L
L
f
V
= 5MHz,
C
Spurious-Free Dynamic Range
Second Harmonic Distortion
Third Harmonic Distortion
Differential Gain Error
dB
dBc
= 2Vp-p
O
= 150Ω
= 1kΩ
55
-65
-55
-73
-61
0.03
0.07
0.06
0.45
4
f
= 5MHz,
C
V
= 2Vp-p
= 5MHz,
O
= 150Ω
= 1kΩ
f
C
dBc
V
= 2Vp-p
O
= 150Ω
= 1kΩ
8/MAX4190
DG
DP
NTSC
degrees
degrees
pA/√Hz
= 150Ω
= 1kΩ
Differential Phase Error
NTSC
= 150Ω
Positive input
Negative input
Input Noise Current Density
f = 10kHz
5
Input Noise Voltage Density
Output Impedance
e
n
f = 10kHz
f = 10MHz
2
nV/√Hz
Ω
Z
4
OUT
All Hostile Off Isolation
f = 10MHz, input referred
-60
120
35
dB
t
ns
Turn-On Time from DISABLE
Turn-Off Time from DISABLE
ON
t
ns
OFF
Positive transient
Negative transient
30
Disable/Enable Switching
Transient
BW
mV
LS
15
6
_______________________________________________________________________________________
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
8/MAX4190
AC ELECTRICAL CHARACTERISTICS—Single Supply (MAX4188)
(V = +5V, V = 0, V = 2.5V, DISABLE_ ≥ 3V, R to V / 2, A = +2V/V, R = R = 1.1kΩ for R = 1kΩ to V / 2 and R = R
=
CC
EE
IN
L
CC
V
F
G
L
CC
F
G
620Ω for R = 150Ω; T = +25°C, unless otherwise noted.)
L
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
185
145
0.1
0.1
110
65
MAX
UNITS
R
R
R
R
R
R
= 1kΩ
L
L
L
L
L
L
Small-Signal -3dB Bandwidth
BW
MHz
-3dB
= 150Ω
= 1kΩ
Peaking
dB
= 150Ω
= 1kΩ
Bandwidth for 0.1dB Flatness
Large-Signal -3dB Bandwidth
BW
MHz
MHz
0.1dB
= 150Ω
R
R
= 1kΩ
80
L
L
BW
V
OUT
= 2Vp-p
LS
= 150Ω
80
= 2V step,
= 150Ω
Positive slew
Negative slew
300
230
20
V/µs
V/µs
ns
V
OUT
Slew Rate
SR
R
L
Settling Time to 0.1%
Rise/Fall Time
t
S
V
OUT
= 2V step
= 2V step
Rise time
Fall time
8
V
OUT
ns
9
R
R
R
R
R
R
R
R
R
R
= 1kΩ
66
L
L
L
L
L
L
L
L
L
L
f
V
= 5MHz,
C
Spurious-Free Dynamic Range
Second Harmonic Distortion
Third Harmonic Distortion
Differential Phase Error
SFDR
dB
= 2Vp-p
OUT
= 150Ω
= 1kΩ
56
-76
-59
-66
-56
0.06
0.34
0.02
0.05
2
f
= 5MHz,
C
dBc
dBc
V
= 2Vp-p
OUT
= 150Ω
= 1kΩ
f
= 5MHz,
C
V
= 2Vp-p
OUT
= 150Ω
= 1kΩ
DP
NTSC
NTSC
degrees
= 150Ω
= 1kΩ
Differential Gain Error
DG
%
= 150Ω
Input Noise Voltage Density
Input Noise Current Density
e
n
f = 10kHz
f = 10kHz
nV/√Hz
pA/√Hz
Positive input
Negative input
4
i
n
5
Output Impedance
Crosstalk
Z
OUT
f = 10MHz
4
Ω
dB
f = 10MHz, input referred
f = 10MHz, input referred
-55
-65
40
All Hostile Off Isolation
Gain Matching to 0.1dB
dB
MHz
Delay from DISABLE to 90% of V
,
OUT
Amplifier Enable Time
Amplifier Disable Time
t
120
35
ns
ns
ON
V
IN
= 3V
Delay from DISABLE to 10% of V
,
OUT
t
OFF
V
IN
= 3V
Positive transient
Negative transient
30
15
Disable/Enable Switching
Transient
mV
_______________________________________________________________________________________
7
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
AC ELECTRICAL CHARACTERISTICS—Single Supply (MAX4189)
(V = +5V, V = 0, V = 2.5V, DISABLE_ ≥ 3V, R to V / 2, A = +1V/V, R = 1500Ω for R = 1kΩ and R = 1600Ω for R
=
CC
EE
IN
L
CC
V
F
L
F
L
150Ω; T = +25°C, unless otherwise noted.)
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
230
190
1.4
0.15
7
MAX
UNITS
R
R
R
R
R
R
= 1kΩ
L
L
L
L
L
L
Small-Signal -3dB Bandwidth
BW
MHz
-3dB
= 150Ω
= 1kΩ
Peaking
dB
= 150Ω
= 1kΩ
Bandwidth for 0.1dB Flatness
Large-Signal -3dB Bandwidth
BW
MHz
MHz
0.1dB
= 150Ω
40
R
R
= 1kΩ
50
L
BW
V
OUT
= 2Vp-p
LS
= 150Ω
45
L
Positive slew
Negative slew
160
135
25
V
= 2V step,
= 150Ω
OUT
Slew Rate
SR
V/µs
ns
R
L
Settling Time to 0.1%
Rise/Fall Time
t
V
OUT
= 2V step
= 2V step
S
Rise time
Fall time
12
V
OUT
ns
15
R
R
R
R
R
R
R
R
R
R
= 1kΩ
57
L
L
L
L
L
L
L
L
L
L
f
V
= 5MHz,
C
Spurious-Free Dynamic Range
Second Harmonic Distortion
Third Harmonic Distortion
Differential Phase Error
SFDR
dB
dBc
dBc
= 2Vp-p
OUT
= 150Ω
= 1kΩ
47
-58
-54
-57
-47
0.04
0.66
0.06
0.17
2
f
= 5MHz,
C
V
= 2Vp-p
OUT
= 150Ω
= 1kΩ
f
= 5MHz,
C
V
= 2Vp-p
OUT
= 150Ω
= 1kΩ
8/MAX4190
DP
NTSC
NTSC
degrees
= 150Ω
= 1kΩ
Differential Gain Error
DG
%
= 150Ω
Input Noise Voltage Density
Input Noise Current Density
e
n
f = 10kHz
f = 10kHz
nV/√Hz
pA/√Hz
Positive input
Negative input
4
i
n
5
Output Impedance
Crosstalk
Z
f = 10MHz
4
Ω
dB
OUT
f = 10MHz, input referred
f = 10MHz, input referred
-57
-55
25
All Hostile Off Isolation
Gain Matching to 0.1dB
dB
MHz
Delay from DISABLE to 90% of V
,
OUT
Amplifier Enable Time
Amplifier Disable Time
t
120
40
ns
ns
ON
V
IN
= 3V
Delay from DISABLE to 10% of V
,
OUT
t
OFF
V
IN
= 3V
Positive transient
Negative transient
70
Disable/Enable Switching
Transient
mV
110
Note 1: Input Offset Voltage does not include the effect of I
flowing through R /R .
F G
BIAS
Note 2: Does not include current through external feedback network.
Note 3: Over operating supply-voltage range.
8
_______________________________________________________________________________________
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
8/MAX4190
AC & DYNAMIC PERFORMANCE—Single Supply (MAX4190)
(V
CC
= + 5V, V
= 0, V = 0, A = + 2V/V; R = R = 1500Ω for R = 1kΩ a nd R = R = 750Ω for R = 150Ω,
EE
IN
V
G
F
L
F
G
L
T
A
= +25°C, unless otherwise noted)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
165
135
0.1
0.1
70
MAX
UNITS
R
R
R
R
R
R
= 1kΩ
L
L
L
L
L
L
Small-Signal -3dB Bandwidth
Peaking
BW
MHz
-3dB
= 150Ω
= 1kΩ
dB
= 150Ω
= 1kΩ
Bandwidth for 0.1dB Flatness
Large-Signal -3dB Bandwidth
BW
MHz
MHz
0.1dB
= 150Ω
65
R
R
= 1kΩ
75
L
L
BW
V
O
= 2Vp-p
LS
= 150Ω
75
Positive slew
Negative slew
290
220
20
V
= 2V step,
= 150Ω
O
Slew Rate
SR
V/µs
ns
R
L
Settling Time to 0.1%
Rise/Fall Time
t
V
O
= 2V step
S
Rise time
Fall time
8
t
V
= 2V step,
R
O
ns
t
F
R
= 150Ω
L
9
R
R
R
R
R
R
R
R
R
R
= 1kΩ
59
L
L
L
L
L
L
L
L
L
L
f
V
= 5MHz,
C
Spurious-Free Dynamic Range
Second Harmonic Distortion
Third Harmonic Distortion
Differential Gain Error
dB
dBc
dBc
%
= 2Vp-p
O
= 150Ω
= 1kΩ
55
-59
-55
-68
-60
0.02
0.08
0.07
0.43
2
f
= 5MHz,
C
V
= 2Vp-p
= 5MHz,
O
= 150Ω
= 1kΩ
f
C
V
= 2Vp-p
O
= 150Ω
= 1kΩ
DG
DP
NTSC
= 150Ω
= 1kΩ
Differential Phase Error
NTSC
degrees
nV/√Hz
pA/√Hz
= 150Ω
Input Noise Voltage Density
Input Noise Current Density
f = 10kHz
f = 10kHz
f = 10MHz
Positive input
Negative input
4
i
n
5
Output Impedance
Z
4
Ω
dB
ns
OUT
All Hostile Off Isolation
Turn-On Time from DISABLE
Turn-Off Time from DISABLE
f = 10MHz, input referred, R = 150Ω
-60
120
35
L
t
ON
t
ns
OFF
Positive transient
Negative transient
30
Disable/Enable Switching
Transient
BW
mV
LS
15
_______________________________________________________________________________________
9
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
__________________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s
(V = +5V, V = -5V, T = +25°C, unless otherwise noted.)
CC
EE
A
MAX4188 SMALL-SIGNAL GAIN
vs. FREQUENCY (DUAL SUPPLIES)
MAX4188 SMALL-SIGNAL GAIN
vs. FREQUENCY (SINGLE SUPPLY)
MAX4188 GAIN FLATNESS
vs. FREQUENCY (DUAL SUPPLIES)
10
10
9
0.4
0.3
0.2
R = R = 910Ω
L
F
G
9
8
R = 1kΩ
R = R = 910kΩ
R = 1kΩ
L
R = R = 430Ω
R = 100Ω
L
F
G
F
G
8
R = R = 560Ω
R = 150Ω
L
F
G
R = R = 1.1kΩ
R = 1kΩ
L
F
G
7
6
7
6
0.1
0
R = R = 620Ω
L
F
G
5
4
5
4
-0.1
-0.2
R = R = 620Ω
R = 150Ω
L
F
G
R = 150Ω
R = R = 390Ω
R = 100Ω
L
F
G
R = R = 390Ω
F
G
3
2
3
2
-0.3
-0.4
R = 100Ω
L
V
= 0V
EE
V = 20mVp-p
IN
A = +2V/V
V
= 20mVp-p
A = +2V/V
IN
V = 20mVp-p
A = +2V/V
IN
1
0
1
0
-0.5
-0.6
V
V
V
1
1
1
10
100
1000
1000
1000
1
10
100
1000
1
10
100
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX4189 SMALL-SIGNAL GAIN
vs. FREQUENCY (SINGLE SUPPLY)
MAX4189 GAIN FLATNESS
vs. FREQUENCY (DUAL SUPPLIES)
MAX4189 SMALL-SIGNAL GAIN
vs. FREQUENCY (DUAL SUPPLIES)
0.2
0.1
0
4
3
2
4
3
2
R = 1.1kΩ
R = 150Ω
L
F
R = 1.5kΩ
R = 1.6kΩ
F
F
R = 1kΩ
L
R = 1kΩ
L
R = 680Ω
R = 100Ω
F
L
R = 680Ω
R = 100Ω
F
1
0
-0.1
-0.2
-0.3
-0.4
1
0
L
8/MAX4190
-1
-2
-1
-2
R = 1.6kΩ
R = 150Ω
F
L
R = 1.1kΩ
R = 150Ω
L
-3
-4
-5
-6
-0.5
-0.6
-3
-4
F
R = 910Ω
R = 100Ω
L
F
V
= 0
EE
V = 20mVp-p
IN
A = +1V/V
V
= 20mVp-p
IN
V = 20mVp-p
IN
-0.7
-0.8
-5
-6
A = +1V/V
V
V
A = +1V/V
V
1
10
100
1000
1
10
100
1000
10
100
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX4188 LARGE-SIGNAL GAIN
vs. FREQUENCY (SINGLE SUPPLY)
MAX4188 SMALL-SIGNAL GAIN
MATCHING vs. FREQUENCY
MAX4188 LARGE-SIGNAL GAIN
vs. FREQUENCY (DUAL SUPPLIES)
10
2.5
10
9
9
8
2.0
1.5
8
CH1-CH3
R = R = 620Ω
F
G
R = R = 560Ω
7
6
1.0
0.5
F
G
7
6
R = 150Ω
L
R = 150Ω
L
5
4
0
5
4
R = R = 1.1kΩ
F
G
-0.5
R = R = 910Ω
R = 1kΩ
R = 1kΩ
CH2-CH3
F
G
L
L
3
2
-1.0
-1.5
3
2
V = 20mVp-p
IN
R = R = 750Ω
V
EE
= 0
F
G
CH1-CH2
100
R = 1kΩ
V = 1Vp-p
A = +2V/V
V
L
IN
V = 1Vp-p
A = +2V/V
IN
1
0
-2.0
-2.5
A = +2V/V
1
0
V
V
1
10
100
1000
1
10
1000
10
100
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
10 ______________________________________________________________________________________
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
8/MAX4190
____________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )
(V = +5V, V = -5V, T = +25°C, unless otherwise noted.)
CC
EE
A
MAX4189 LARGE-SIGNAL GAIN
vs. FREQUENCY (DUAL SUPPLIES)
MAX4189 LARGE-SIGNAL GAIN
vs. FREQUENCY (SINGLE SUPPLY)
MAX4189 SMALL-SIGNAL GAIN
MATCHING vs. FREQUENCY
4
2.5
4
3
2
3
2
2.0
1.5
R = 1.5kΩ
R = 1kΩ
L
F
CH_1–CH_3
CH_1–CH_2
R = 1.6kΩ
R = 1kΩ
L
F
1
0
1
0
1.0
0.5
-1
-2
-1
-2
0
R = 1.6kΩ
R = 150Ω
L
R = 1.1kΩ
R = 150Ω
L
F
F
-0.5
CH_3–CH_2
-3
-4
-3
-4
-1.0
-1.5
V = 2Vp-p
IN
V
= 0
R = 1.6kΩ
EE
F
V = 2Vp-p
IN
V = 2Vp-p
IN
R = 1kΩ
L
-5
-6
= 1V/V
-5
-6
-2.0
-2.5
A
V
A = +1V/V
V
A = +1V/V
V
1
10
100
1000
1
10
100
1000
1
10
100
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX4188 HARMONIC DISTORTION
vs. FREQUENCY (DUAL SUPPLIES)
MAX4188 HARMONIC DISTORTION
vs. FREQUENCY (SINGLE SUPPLY)
MAX4188 CROSSTALK vs.
FREQUENCY (DUAL SUPPLIES)
0
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
0
V
= 2Vp-p
V
= 2Vp-p
V
L
= 2Vp-p
R = 150Ω
OUT
OUT
OUT
-10
-20
-10
-20
-30
-40
-50
-60
-70
-80
-30
-40
3RD (R = 150Ω)
L
3RD (R = 150Ω)
L
-50
-60
2ND (R = 150Ω)
L
2ND (R = 150Ω)
L
-70
-80
2ND (R = 1kΩ)
L
3RD (R = 1kΩ)
L
-90
2ND (R = 1kΩ)
3RD (R = 1kΩ)
L
L
-100
0.1
1
10
100
0.1
1
10
100
1
10
100
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX4189 HARMONIC DISTORTION
vs. FREQUENCY (DUAL SUPPLIES)
MAX4189 HARMONIC DISTORTION
vs. FREQUENCY (SINGLE SUPPLY)
MAX4189 CROSSTALK vs.
FREQUENCY (DUAL SUPPLIES)
0
0
0
V
= 2Vp-p
V
= 2Vp-p
V
L
= 2Vp-p
R = 150Ω
OUT
OUT
OUT
-10
-20
-10
-20
-10
-20
-30
-40
-50
-60
-70
-80
-30
-40
-30
-40
3RD (R = 150Ω)
L
3RD (R = 150Ω)
L
-50
-60
-50
-60
2ND (R = 150Ω)
L
2ND (R = 150Ω)
L
2ND (R = 1kΩ)
L
-70
-80
-70
-80
2ND (R = 1kΩ)
L
3RD (R = 1kΩ)
L
-90
-90
3RD (R = 1kΩ)
L
-100
-100
0.1
1
10
100
0.1
1
10
100
1
10
100
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
______________________________________________________________________________________ 11
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
____________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )
(V = +5V, V = -5V, T = +25°C, unless otherwise noted.)
CC
EE
A
TOTAL VOLTAGE-NOISE DENSITY
vs. FREQUENCY (INPUT REFERRED)
-3dB BANDWIDTH
vs. INPUT AMPLITUDE
INPUT VOLTAGE-NOISE
DENSITY vs. FREQUENCY
3.4
350
28
24
20
16
12
8
MAX4189
MAX4188
V
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
IN
300
250
200
150
V
OUT
MAX4188
910k
DUAL SUPPLIES:
R = 1kΩ,
910k
L
100
50
A = +2V/V, R = R = 910Ω
V
F
G
FOR MAX4188;
A = +1V/V, R = 1.6kΩ
V
F
FOR MAX4189
4
0
100 1k 10k 100k 1M 10M 100M 1G
FREQUENCY (Hz)
100 1k 10k 100k 1M 10M 100M 1G
FREQUENCY (Hz)
0.02
0.1
INPUT AMPLITUDE (Vp-p)
1
2
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
SUPPLY CURRENT PER AMPLIFIER
vs. TEMPERATURE
OUTPUT IMPEDANCE
vs. FREQUENCY (DUAL SUPPLIES)
1.6
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
1k
R = 1kΩ,
L
A = +2V/V, R = R = 910Ω
V
F
G
V
= 5V; V = -5V
EE
V
(MAX4188)
CC
CC
FOR MAX4188;
A = +1 V/V, R = 1.6kΩ
1.5
100
10
1
V
F
FOR MAX4189
V
(MAX4189)
CC
V
= 5V; V = 0
EE
CC
8/MAX4190
1.4
1.3
1.2
V
(MAX4189)
EE
MAX4189
MAX4188
100
V
EE
(MAX4188)
1
0.1
-40 -20
0
20
40
60
80
0.1
10
100
1000
0.1
1
10
1000
FREQUENCY (MHz)
TEMPERATURE (°C)
FREQUENCY (MHz)
INPUT BIAS CURRENT
vs. TEMPERATURE
DISABLED SUPPLY CURRENT PER
AMPLIFIER vs. TEMPERATURE
INPUT OFFSET VOLTAGE (V
)
OS
vs. TEMPERATURE
5
4
3
2
1
0
0.5
0.4
0.3
0.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
V
CC
= ±5V
V
= ±2.5V
CC
I - (POSITIVE INPUT)
B
I - (NEGATIVE INPUT)
B
-40 -20
0
20
40
60
80
-40 -20
0
20
40
60
80
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
12 ______________________________________________________________________________________
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
8/MAX4190
____________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )
(V = +5V, V = -5V, T = +25°C, unless otherwise noted.)
CC
EE
A
MAX4188
ENABLE/DISABLE RESPONSE
MAX4189
POWER-ON RESPONSE
OUTPUT VOLTAGE SWING
vs. TEMPERATURE
1.8
1.6
1.4
1.2
1.0
0.8
4V
DISABLE
0V
V
- V ; R = 150Ω
L
10V
OL EE
V
CC
0V
V
- V ; R = 150Ω
L
CC OH
2V
V
OUT
OUT
0V
2V/div
0V
V
- V ; R = 1kΩ
OL EE
L
V
- V ; R = 1kΩ
L
CC OH
50ns/div
200ns/div
-40 -20
0
20
40
60
80
A = +2V/V, R = R = 910Ω, R = 1kΩ, V = 1V
V
F
G
L
IN
A = +1V/V, R = 1kΩ, R = 1.6kΩ, V = 0
TEMPERATURE (°C)
V
L
F
EE
MAX4188
SMALL-SIGNAL PULSE RESPONSE
(WITH C
MAX4188
LARGE-SIGNAL PULSE RESPONSE
MAX4188
SMALL-SIGNAL PULSE RESPONSE
)
LOAD
+1V
IN
+25mV
IN
+25mV
IN
-25mV
-1V
-25mV
+2V
OUT
-2V
+50mV
+50mV
OUT
OUT
-50mV
-50mV
10ns/div
10ns/div
10ns/div
A = +2V/V, R = R = 910Ω, R = 1kΩ, C = 47pF
A = +2V/V, R = R = 910Ω, R = 1kΩ
A = +2V/V, R = R = 910Ω, R = 1kΩ
V
F
G
L
V
F
G
L
V
F
G
L
L
______________________________________________________________________________________ 13
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
____________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )
(V = +5V, V = -5V, T = +25°C, unless otherwise noted.)
CC
EE
A
MAX4189
MAX4189
SMALL-SIGNAL PULSE RESPONSE
MAX4189
SMALL-SIGNAL PULSE RESPONSE
(WITH C
)
LARGE-SIGNAL PULSE RESPONSE
LOAD
+50mV
IN
+50mV
IN
+2V
IN
-50mV
-50mV
-2V
+50mV
OUT
+50mV
OUT
+2V
OUT
-2V
-50mV
-50mV
10ns/div
10ns/div
10ns/div
A = +1V/V, R = 1.1kΩ, R = 150Ω
V
F
L
A = +1V/V, R = 1.1kΩ, R = 150Ω
A = +1V/V, R = 1.6kΩ, R = 1kΩ, C = 47pF
V
F
L
L
V
F
L
MAX4189
SWITCHING TRANSIENT
MAX4188
SWITCHING TRANSIENT
OFF-CHANNEL FEEDTHROUGH
vs. FREQUENCY (DUAL SUPPLIES)
-25
8/MAX4190
R = 150Ω
L
3V
3V
-35
-45
-55
-65
-75
-85
-95
DISABLE
DISABLE
0V
0V
OUT
0V
OUT
100mV/div
20mV/div
100ns/div
100ns/div
1
10
100
1000
A = +1V/V, R = 1.6kΩ, R = 1kΩ, V = 0
A = +2V/V, R = 910Ω, R = 1kΩ, V = 0
V
F
L
IN
V
F
L
IN
FREQUENCY (MHz)
14 ______________________________________________________________________________________
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
8/MAX4190
P in De s c rip t io n s
PIN
MAX4188/MAX4189
MAX4190
SO/µMAX
—
NAME
FUNCTION
SO
QSOP
Disable Control Input for Amplifier 1. Amplifier 1 is enabled when
DISABLE1 ≥ (V - 2V) and disabled when DISABLE1 ≤ (V - 3V).
1
1
DISABLE1
DISABLE2
DISABLE3
CC
CC
Disable Control Input for Amplifier 2. Amplifier 2 is enabled when
DISABLE2 ≥ (V - 2V) and disabled when DISABLE2 ≤ (V - 3V).
2
3
2
3
—
—
CC
CC
Disable Control Input for Amplifier 3. Amplifier 3 is enabled when
DISABLE3 ≥ (V - 2V) and disabled when DISABLE3 ≤ (V - 3V).
CC
CC
4
5
4
5
7
—
—
—
1, 5
—
—
—
V
Positive Power Supply. Connect V to +5V.
CC
CC
IN1+
IN1-
Amplifier 1 Noninverting Input
Amplifier 1 Inverting Input
Amplifier 1 Output
6
6
7
7
OUT1
N.C.
—
8
8, 9
10
11
12
No Connect. Not internally connected.
Amplifier 3 Output
OUT3
IN3-
9
Amplifier 3 Inverting Input
Amplifier 3 Noninverting Input
10
IN3+
Negative Power Supply. Connect V to -5V or to ground for single-supply
EE
operation.
11
13
4
V
EE
12
13
14
—
—
—
14
15
16
—
—
—
—
—
—
2
IN2+
IN2-
OUT2
IN-
Amplifier 2 Noninverting Input
Amplifier 2 Inverting Input
Amplifier 2 Output
Amplifier Inverting Input
Amplifier Noninverting Input
Amplifier Output
3
IN+
6
OUT
Disable Control Input. Amplifier is enabled when DISABLE ≥ (V - 2V)
CC
—
—
8
DISABLE
and disabled when DISABLE ≤ (V - 3V).
CC
Wide bandwidth, low power, low differential phase/gain
error, and excellent gain flatness make the MAX4188
family ideal for use in portable video equipment such
as video cameras, video switchers, and other battery-
powered equipment. Their two-stage design provides
higher gain and lower distortion than conventional sin-
gle-stage, current-feedback amplifiers. This feature,
combined with a fast settling time, makes these devices
suitable for buffering high-speed analog-to-digital con-
verters.
De t a ile d De s c rip t io n
The MAX4188/MAX4189/MAX4190 are very low-power,
current-feedback amplifiers featuring bandwidths up to
250MHz, 0.1dB gain flatness to 80MHz, and low differ-
ential gain (0.03%) and phase (0.05°) errors. These
amplifiers achieve very high bandwidth-to-power ratios
while maintaining low distortion, wide signal swing, and
excellent load-driving capabilities. They are optimized
for ±5V supplies but are also fully specified for single
+5V operation. Consuming only 1.5mA per amplifier,
these devices have ±55mA output current drive capabil-
ity and achieve low distortion even while driving 150Ω
loads.
The MAX4188/MAX4189/MAX4190 have a high-speed,
low-power disable mode that is activated by driving the
amplifiers’ DISABLE input low. In the disable mode, the
______________________________________________________________________________________ 15
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
amplifiers achieve very high isolation from input to output
+5V
-5V
(65dB at 10MHz), and the outputs are placed into a high-
impedance state. These amplifiers achieve low switch-
ing -tra ns ie nt g litc he s (<45mVp -p ) whe n s witc hing
between enable and disable modes. Fast enable/disable
times (120ns/35ns), along with high off-isolation and low
switching transients, allow these devices to be used as
high-performance, high-speed multiplexers. This is
achieved by connecting the outputs of multiple amplifiers
together and controlling the DISABLE inputs to enable
one amplifier and disable all others. The disabled ampli-
fiers present a very light load (1µA leakage current and
3.5pF capacitance) to the active amplifier’s output. The
feedback network impedance of all the disabled ampli-
fiers must still be considered when calculating the total
load on the active amplifier output. Figure 1 shows an
application circuit using the MAX4188 as a 3:1 video mul-
tiplexer.
1.0µF
0.1µF
0.1µF
11
1.0µF
4
560Ω
560Ω
6
5
7
AMP1
87Ω
V 1
IN
75Ω
MAX4188
AMP2
560Ω
75Ω
CABLE
560Ω
87Ω
13
12
V
OUT
14
V 2
IN
75Ω
The DISABLE_ logic threshold is typically V
- 2.5V,
CC
75Ω
independent of V . For a single +5V supply or dual
EE
±5V supplies, the disable inputs are CMOS-logic com-
patible. The amplifiers default to the enabled mode if
the DISABLE pin is left unconnected. If the DISABLE
pin is left floating, take proper care to ensure that no
high-frequency signals are coupled to this pin, as this
may cause false triggering.
560Ω
560Ω
87Ω
9
8
AMP3
10
V 3
IN
75Ω
Ap p lic a t io n s In fo rm a t io n
8/MAX4190
1
2
3
Th e o ry o f Op e ra t io n
The MAX4188/MAX4189/MAX4190 are current-feedback
a mp lifie rs , a nd the ir op e n-loop tra ns fe r func tion is
DISABLE1
DISABLE2
DISABLE3
expressed as a transimpedance, ∆V /∆I , or TZ. The
OUT IN
frequency behavior of the open-loop transimpedance is
similar to the open-loop gain of a voltage-mode feedback
amplifier. That is, it has a large DC value and decreases
at approximately 6dB per octave.
Figure 1. High-Speed 3:1 Video Multiplexer
Analyzing the follower with gain, as shown in Figure 2,
yields the following transfer function:
R
G
R
F
V
OUT
/ V = G x [(T (S) / T (s) + G x (R + R )]
IN Z Z IN F
where G = A
= 1 + (R / R ), and R = 1/g
F G IN M
VCL
300Ω.
R
IN
At low gains, G x R < R . Therefore, the closed-loop
+1
V
OUT
IN
F
bandwidth is essentially independent of closed-loop
gain. Similarly TZ > R at low frequencies, so that:
T
Z
F
+1
MAX4188
MAX4189
MAX4190
V
OUT
= G = 1 + (R / R )
F
G
V
IN
V
IN
Figure 2. Current-Feedback Amplifier
16 ______________________________________________________________________________________
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
8/MAX4190
Adequate bypass capacitance at each supply is very
important to optimize the high-frequency performance of
the s e a mp lifie rs . Ina d e q ua te b yp a s s ing will a ls o
degrade crosstalk rejection, especially with heavier
loads. Use a 1µF capacitor in parallel with a 0.01µF to
0.1µF capacitor between each supply pin and ground to
achieve optimum performance. The bypass capacitors
should be located as close to the device as possible. A
10µF low-ESR tantalum capacitor may be required to
produce the best settling time and lowest distortion
when large transient currents must be delivered to a
load.
La yo u t a n d P o w e r-S u p p ly Byp a s s in g
As with all wideband amplifiers, a carefully laid out
p rinte d c irc uit b oa rd a nd a d e q ua te p owe r-s up p ly
bypassing are essential to realizing the optimum AC
performance of MAX4188/MAX4189/MAX4190. The PC
b oa rd s hould ha ve a t le a s t two la ye rs . Sig na l a nd
power should be on one layer. A large low-impedance
ground plane, as free of voids as possible, should be
the othe r la ye r. With multila ye r b oa rd s , loc a te the
ground plane on a layer that incorporates no signal or
power traces.
Do not us e wire -wra p b oa rd s or b re a d b oa rd s a nd
s oc ke ts . Wire -wra p b oa rd s a re too ind uc tive .
Breadboards and sockets are too capacitive. Surface-
mount components have lower parasitic inductance
a nd c a p a c ita nc e , a nd a re the re fore p re fe ra b le to
through-hole components. Keep lines as short as pos-
sible to minimize parasitic inductance, and avoid 90°
turns. Round all corners. Terminate all unused amplifier
inputs to ground with a 100Ω or 150Ω resistor.
Ch o o s in g Fe e d b a c k a n d Ga in Re s is t o rs
The optimum value of the external-feedback (R ) and
F
gain-setting (R ) resistors used with the MAX4188/
G
MAX4189/MAX4190 depends on the closed-loop gain
and the application circuit’s load. Table 1 lists the opti-
mum resistor values for some specific gain configura-
tions. One -p e rc e nt re sistor va lue s a re pre fe rre d to
maintain consistency over a wide range of production
lots. Figures 3a and 3b show the standard inverting
and noninverting configurations. Note that the nonin-
verting circuit gain (Figure 3b) is 1 plus the magnitude
of the inverting closed-loop gain. Otherwise, the two
circuits are identical.
The MAX4188/MAX4189/MAX4190 a c hie ve a hig h
d e g re e of off-is ola tion (65d B a t 10MHz) a nd low
crosstalk (-55dB at 10MHz). The input and output sig-
nal traces must be kept from overlapping to achieve
high off-isolation. Coupling between the signal traces of
different channels will degrade crosstalk. The signal
traces of each channel should be kept from overlap-
ping with the signal traces of the other channels.
V
IN
R
F
R
G
R
F
R
G
R
S
R
T
V
OUT
V
OUT
R
O
R
S
R
O
V
IN
MAX4188
MAX4189
MAX4190
R
T
MAX4188
MAX4189
MAX4190
V
OUT
= [1+ (R / R )] V
F G IN
V
OUT
= -(R / R ) (V )
F G IN
Figure 3a. Inverting Gain Configuration
Figure 3b. Noninverting Gain Configuration
______________________________________________________________________________________ 17
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
Table 1a. MAX4188 Recommended Component Values
DUAL SUPPLIES
SINGLE SUPPLY
A = +5
(V/V)
A = +10
V
(V/V)
A
= +5
V/V
A = +10
V
V
V
A
= +2V/V
A = +2V/V
V
COMPONENT/
BW
V
V/V
R =
L
1kΩ
R =
L
150Ω
R =
L
100Ω
R =
L
1kΩ
R =
L
1kΩ
R =
L
1kΩ
R =
L
150Ω
R =
L
100Ω
R =
L
1kΩ
R =
L
1kΩ
R
(Ω)
(Ω)
910
910
200
560
560
160
390
390
145
470
120
70
470
51
1.1k
1.1k
185
620
620
145
430
430
130
470
120
70
470
51
F
R
G
-3dB BW (MHz)
30
30
Table 1b. MAX4189 Recommended Component Values
DUAL SUPPLIES
COMPONENT/
SINGLE SUPPLY
= +1V/V
A
V
= +1V/V
A
V
BW
R = 1kΩ
L
R = 150Ω
L
R = 100Ω
L
R = 1kΩ
L
R = 150Ω
L
R = 100Ω
L
R
(Ω)
1.6k
250
1.1k
210
680
185
1.5k
230
1.6k
190
910
165
G
-3dB BW (MHz)
Table 1c. MAX4190 Recommended Component Values
DUAL SUPPLIES
SINGLE SUPPLY
A = +5
V
(V/V)
A = +10
V
(V/V)
A
= +5
V/V
A = +10
V
V
A
V
= +2V/V
A = +1V/V
V
COMPONENT/
BW
V/V
8
R =
L
1kΩ
R =
L
150Ω
R =
L
100Ω
R =
L
1kΩ
R =
L
1kΩ
R =
L
1kΩ
R =
L
150Ω
R =
L
100Ω
R =
L
1kΩ
R =
L
1kΩ
R
(Ω)
(Ω)
1.3k
1.3k
185
680
680
180
510
510
135
470
120
70
470
51
1.5k
1.5k
165
750
750
135
510
510
125
470
120
70
470
51
F
R
G
-3dB BW (MHz)
30
30
The equation for the total DC error at the output is:
DC a n d No is e Erro rs
Several major error sources must be considered in any
op a mp . The s e a p p ly e q ua lly to the MAX4188/
MAX4189/MAX4190. Offset-error terms are given by the
equation below. Voltage and current-noise errors are
root-square summed and are therefore computed sep-
arately. In Figure 4, the total output offset voltage is
determined by the following factors:
R
R
F
V
=
I
R
)
+ I
R || R
+ V
OS
1+
(
(
)
(
)
OUT
B+
S
B−
F
G
G
R
F
R
G
•
The input offset voltage (V ) times the closed-loop
OS
gain (1 = R / R ).
F
G
I -
B
V
OUT
•
The p os itive inp ut b ia s c urre nt (I ) time s the
B+
I +
B
source resistor (R ) (usually 50Ω or 75Ω), plus the
S
negative input bias current (I ) times the parallel
B-
MAX4188
MAX4189
MAX4190
R
S
c omb ina tion of R a nd R . In c urre nt-fe e d b a c k
G
F
amplifiers, the input bias currents at the IN+ and IN-
terminals do not track each other and may have
opposite polarity, so there is no benefit to matching
the resistance at both inputs.
Figure 4. Output Offset Voltage
18 ______________________________________________________________________________________
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
8/MAX4190
The total output-referred noise voltage is:
With a 200MHz system bandwidth, this calculates to
68µV (approximately 408µVp-p, choosing the six-
sigma value).
RMS
R
F
e
=
1+
x
n(OUT)
R
G
Vid e o Lin e Drive r
2
2
2
The MAX4188/MAX4189/MAX4190 are well suited to
drive coaxial transmission lines when the cable is termi-
na te d a t b oth e nd s (Fig ure 5). Ca b le fre q ue nc y
response can cause variations in the signal’s flatness.
i
R
)
+
i
R || R
+ e
n
(
(
)
(
)
n+
S
n−
F
G
The MAX4188/MAX4189/MAX4190 have a very low,
2nV/√Hz noise voltage. The current noise at the positive
See Table 1 for optimum R and R values.
F
G
input (i ) is 4pA/√Hz, and the current noise at the
n+
Drivin g Ca p a c it ive Lo a d s
The MAX4188/MAX4189/MAX4190 are optimized for
AC performance. Reactive loads decrease phase mar-
gin and may produce excessive ringing and oscillation.
Unlike mos t hig h-s p e e d a mp lifie rs , the MAX4188/
MAX4189/MAX4190 are tolerant of capacitive loads up
to 50p F. Ca p a c itive loa d s g re a te r tha n 50p F ma y
cause ringing and oscillation. Figure 6a shows a circuit
that eliminates this problem. Placing the small (usually
inverting input is 5pA/√Hz.
An example of the DC error calculations, using the
MAX4188 typical data and typical operating circuit
whe re R = R = 560kΩ (R || R = 280Ω), a nd
F
G
F
G
R = 37.5Ω, gives the following:
S
1 x 10−6 x 37.5 + 2 x 10−6 280
+ 1.5 x 10−3
V
=
x 1+1
(
)
OUT
15Ω to 33Ω) isolation resistor, R , before the reactive
S
load prevents ringing and oscillation. At higher capaci-
tive loads, the interaction of the load capacitance and
isolation resistor controls AC performance. Figures 6b
and 6c show the MAX4188 and MAX4189 frequency
response with a 100pF capacitive load. Note that in
each case, gain peaking is substantially reduced when
the 20Ω resistor is used to isolate the capacitive load
from the amplifier output.
V
= 4.1mV
OUT
Calculating the total output noise in a similar manner
yields:
2
−12
4 x 10
5 x 10
x 37.5
x 280
+
e
e
= 1+1
(
)
n(OUT)
n(OUT)
2
2
−12
−9
+
2 x 10
= 4.8nV/ Hz
R
560Ω
G
R
F
560Ω
+5V
MAX4188
MAX4189
MAX4190
0.1µF
R
G
R
F
75Ω CABLE
75Ω
75Ω
R
S
MAX4188
75Ω CABLE
75Ω
VIDEO
OUT
V
IN
C
L
R
L
VIDEO
IN
0.1µF
-5V
Figure 5. Video Line Driver Application
Figure 6a. Using an Isolation Resistor (R ) for High Capacitive
S
Loads
______________________________________________________________________________________ 19
S in g le /Trip le , Lo w -Glit c h , 2 5 0 MHz, Cu rre n t -
Fe e d b a c k Am p lifie rs w it h Hig h -S p e e d Dis a b le
12
10
5
4
MAX4188/MAX4190
A = +2V/V
MAX4189
A = +1V/V
V
V
R = R = 910Ω
F
G
R = 1.6k
F
R = 0Ω
S
8
6
4
2
0
3
2
R = 1k || 100pF
L
R = 1k || 100pF
L
R = 0Ω
S
V = 20mVp-p
IN
V = 20mVp-p
IN
1
R = 20Ω
S
0
R = 20Ω
S
R = 33Ω
S
-1
-2
-4
-2
-3
-4
-5
R = 33Ω
S
-8
-10
1
10
100
1000
1
10
100
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
Figure 6c. Normalized Frequency Response with 100pF
Capacitive Load
Figure 6b. Normalized Frequency Response with 100pF
Capacitive Load
Ch ip In fo rm a t io n
Ord e rin g In fo rm a t io n (c o n t in u e d )
PART
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
14 SO
MAX4188/4189
TRANSISTOR COUNT: 336
MAX4189ESD
MAX4189EEE
MAX4190ESD
MAX4190EEE
16 QSOP
8 SO
MAX4190
TRANSISTOR COUNT: 112
8/MAX4190
8 µMAX
SUBSTRATE CONNECTED TO V
EE
P in Co n fig u ra t io n s
TOP VIEW
DISABLE1
DISABLE2
DISABLE3
1
2
3
4
5
6
7
8
16 OUT2
15 IN2-
14 IN2+
DISABLE1
DISABLE2
DISABLE3
1
2
3
4
5
6
7
14 OUT2
13 IN2-
12 IN2+
N.C.
IN-
1
2
8
7
6
5
DISABLE
V
CC
MAX4188
MAX4189
13 VEE
V
CC
MAX4190
V
CC
11
V
EE
MAX4188
MAX4189
IN+
3
4
OUT
N.C.
IN1+
IN1-
12 IN3+
11 IN3-
10 OUT3
V
EE
IN1+
IN1-
10 IN3+
9
8
IN3-
OUT1
N.C.
SO/µMAX
OUT1
OUT3
9
N.C.
SO
QSOP
20 ______________________________________________________________________________________
相关型号：
MAX4190ESA+
Operational Amplifier, 1 Func, 6000uV Offset-Max, BIPolar, PDSO8, 0.150 INCH, MS-012A, SOIC-8
MAXIM
MAX4190ESA+T
Operational Amplifier, 1 Func, 6000uV Offset-Max, BIPolar, PDSO8, 0.150 INCH, MS-012A, SOIC-8
MAXIM
MAX4193CPA+
Switching Regulator, Voltage-mode, 0.525A, 75kHz Switching Freq-Max, CMOS, PDIP8, PLASTIC, DIP-8
MAXIM
©2020 ICPDF网 联系我们和版权申明