MAX4310ESA-T [MAXIM]
Video Multiplexer, 1 Func, 2 Channel, BIPolar, PDSO8, 0.150 INCH, SOIC-8;
| 型号： | MAX4310ESA-T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Video Multiplexer, 1 Func, 2 Channel, BIPolar, PDSO8, 0.150 INCH, SOIC-8 光电二极管 |
| 文件： | 总20页 (文件大小：419K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1379; Rev 2; 12/02
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
General Description
Features
The MAX4310–MAX4315 single-supply mux-amps com-
bine high-speed operation, low-glitch switching, and
excellent video specifications. The six products in this
family are differentiated by the number of multiplexer
inputs and the gain configuration. The MAX4310/
MAX4311/MAX4312 integrate 2-/4-/8-channel multiplex-
ers, respectively, with an adjustable gain amplifier opti-
mized for unity-gain stability. The MAX4313/MAX4314/
MAX4315 integrate 2-/4-/8-channel multiplexers, respec-
tively, with a +2V/V fixed-gain amplifier. All devices have
40ns channel switching time and low 10mVp-p switching
transients, making them ideal for video-switching applica-
tions. They operate from a single +4V to +10.5V supply,
or from dual supplies of 2V to 5.25V, and they feature
Rail-to-Rail® outputs and an input common-mode voltage
range that extends to the negative supply rail.
ꢀ Single-Supply Operation Down to +4V
ꢀ 345MHz -3dB Bandwidth (MAX4311)
150MHz -3dB Bandwidth (MAX4313)
ꢀ 540V/µs Slew Rate (MAX4313)
ꢀ Low 6.1mA Quiescent Supply Current
ꢀ 40ns Channel Switching Time
ꢀ Ultra-Low 10mVp-p Switching Transient
ꢀ 0.06%/0.08° Differential Gain/Phase Error
ꢀ Rail-to-Rail Outputs: Drives 150Ω to within
730mV of the Rails
ꢀ Input Common-Mode Range Includes
Negative Rail
ꢀ Low-Power Shutdown Mode
ꢀ Available in Space-Saving 8-Pin µMAX and
16-Pin QSOP Packages
The MAX4310/MAX4311/MAX4312 have a -3dB band-
width of 280MHz/345MHz/265MHz and up to a 460V/µs
slew rate. The MAX4313/MAX4314/MAX4315, with
150MHz/127MHz/97MHz -3dB bandwidths up to a
540V/µs slew rate, and a fixed gain of +2V/V, are ideally
suited for driving back-terminated cables. Quiescent sup-
ply current is as low as 6.1mA, while low-power shutdown
mode reduces supply current to as low as 560µA and
places the outputs in a high-impedance state. The
MAX4310–MAX4315’s internal amplifiers maintain an
open-loop output impedance of only 8Ω over the full out-
put voltage range, minimizing the gain error and band-
width changes under loads typical of most rail-to-rail
amplifiers. With differential gain and phase errors of
0.06% and 0.08°, respectively, these devices are ideal for
broadcast video applications.
Ordering Information
PART
TEMP RANGE
-40ºC to +85°C
-40ºC to +85°C
-40ºC to +85°C
-40ºC to +85°C
-40ºC to +85°C
-40ºC to +85°C
-40ºC to +85°C
-40ºC to +85°C
-40ºC to +85°C
-40ºC to +85°C
-40ºC to +85°C
-40ºC to +85°C
PIN-PACKAGE
8 µMAX
MAX4310EUA
MAX4310ESA
MAX4311EEE
MAX4311ESD
MAX4312EEE
MAX4312ESE
MAX4313EUA
MAX4313ESA
MAX4314EEE
MAX4314ESD
MAX4315EEE
MAX4315ESE
8 SO
16 QSOP
14 Narrow SO
16 QSOP
16 Narrow SO
8 µMAX
8 SO
16 QSOP
14 Narrow SO
16 QSOP
________________________Applications
Broadcast Video
Medical Imaging
Multimedia Products
Video Signal Multiplexing
Video Crosspoint Switching
Flash ADC Input Buffers
75Ω Video Cable Drivers
High-Speed Signal Processing
16 Narrow SO
Pin Configurations and Typical Operating Circuit appear at
end of data sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Selector Guide
NO. OF INPUT
CHANNELS
AMPLIFIER GAIN
PART
PIN-PACKAGE
(V/V)
MAX4310
MAX4311
MAX4312
MAX4313
MAX4314
MAX4315
2
4
8
2
4
8
≥ + 1
≥ + 1
≥ + 1
+2
8-Pin SO/µMAX
14-Pin Narrow SO, 16-Pin QSOP
16-Pin Narrow SO/QSOP
8-Pin SO/µMAX
+2
14-Pin Narrow SO, 16-Pin QSOP
16-Pin Narrow SO/QSOP
+2
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
to V ) .................................................12V
14-Pin SO (derate 8.3mW/°C above +70°C).................667mW
16-Pin SO (derate 8.7mW/°C above +70°C).................696mW
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, 10s) .................................+300°C
CC
EE
Input Voltage....................................(V - 0.3V) to (V
+ 0.3V)
CC
+ 0.3V)
CC
EE
All Other Pins ...................................(V - 0.3V) to (V
EE
Output Current................................................................ 120mA
Short-Circuit Duration (V to GND, V or V )....Continuous
OUT
CC
EE
Continuous Power Dissipation (T = +70°C)
A
8-Pin SO (derate 5.9mW/°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
(V = +5V, V = 0V, SHDN ≥ 4V, R = ∞, V
= 2.5V, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.)
MAX A
CC
EE
L
OUT
A
MIN
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
Operating Supply Voltage
Range
V
Inferred from PSRR test
4.0
10.5
- 2.8
- 2.7
V
CC
MAX4310/MAX4311/MAX4312, inferred from
CMRR test
0.035
0.035
73
V
V
CC
CC
Input Voltage Range
V
MAX4313/MAX4314/MAX4315, inferred from
output voltage swing
Common-Mode Rejection
Ratio
0 ≤ V
≤ 2.2V, MAX4310/MAX4311/MAX4312
CM
CMRR
95
dB
only
Input Offset Voltage
V
5.0
7
20
mV
OS
Input Offset Voltage Drift
TC
µV/°C
VOS
Input Offset Voltage
Matching
1
mV
Input Bias Current
I
I
I
7
7
14
14
2
µA
µA
µA
B
IN
Feedback Bias Current
Input Offset Current
I
FB
, MAX4310/MAX4311/MAX4312 only
FB
I
MAX4310/MAX4311/MAX4312 only
V varied over V , MAX4310/MAX4311/
IN
0.1
OS
Common-Mode Input
Resistance
CM
R
R
3
MΩ
KΩ
IN
IN
MAX4312 only
Differential Input Resistance
70
8
Open loop
MAX4310/MAX4311/
MAX4312 only
Output Resistance
R
Ω
Closed loop, A = +1V/V
V
0.025
0.025
35
OUT
MAX4313/MAX4314/MAX4315
MAX4310/MAX4311/MAX4312, open loop
MAX4313/MAX4314/MAX4315
Disabled Output Resistance
Open-Loop Gain
R
A
Ω
OUT
1
MAX4310/MAX4311/MAX4312,
R = 150Ω to GND, 0.25V ≤ V
50
59
dB
V/V
VOL
≤ 4.2V
≤ 4.2V
L
OUT
MAX4313/MAX4314/MAX4315,
R = 150Ω to GND, 0.25V ≤ V
Voltage Gain
A
1.9
2.0
2.1
VCL
L
OUT
2
_______________________________________________________________________________________
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
DC ELECTRICAL CHARACTERISTICS (continued)
(V = +5V, V = 0V, SHDN ≥ 4V, R = ∞, V
= 2.5V, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.)
CC
EE
L
OUT
A
MIN
MAX A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
0.73
0.03
0.25
0.04
95
MAX UNITS
V
V
V
V
- V
0.9
CC
OL
CC
OL
OH
R = 150Ω
L
- V
- V
0.06
V
EE
Output Voltage Swing
Output Current
V
OUT
0.4
OH
EE
R = 10kΩ
L
- V
0.07
mA
I
R = 30Ω
L
75
52
OUT
Power-Supply Rejection
Ratio
PSRR
V
= 4.0V to 10.5V
63
dB
CC
MAX4310/MAX4313
MAX4311/MAX4314
MAX4312/MAX4315
6.1
6.9
7.4
560
7.8
Quiescent Supply Current
Shutdown Supply Current
I
8.8
9.4
750
mA
µA
CC
SHDN ≤ V
IL
LOGIC CHARACTERISTICS (SHDN, A0, A1, A2)
Logic-Low Threshold
Logic-High Threshold
Logic-Low Input Current
Logic-High Input Current
V
V
+ 1
EE
V
IL
IH
IL
V
V
- 1
V
CC
I
V
V
≤ V + 1V
-500
-320
0.3
µA
µA
IL
EE
I
≥ V - 1V
CC
5
IH
IH
AC ELECTRICAL CHARACTERISTICS
(V
= +5V, V
= 0V, SHDN ≥ 4V, R = 150Ω, V
= 1.5V, A
= +1V/V (MAX4310/MAX4311/MAX4312), A = +2V/V
VCL
CC
EE
L
CM
VCL
(MAX4313/MAX4314/MAX4315), T = +25°C, unless otherwise noted.)
A
PARAMETER
SYMBOL
CONDITIONS
MAX4310
MIN
TYP
280
345
265
150
127
97
MAX UNITS
MAX4311
MAX4312
MAX4313
MAX4314
MAX4315
MAX4310
MAX4311
MAX4312
MAX4313
MAX4314
MAX4315
-3dB Bandwidth
BW
V
V
= 100mVp-p
= 100mVp-p
MHz
(-3dB)
OUT
60
40
35
-0.1dB Bandwidth
BW
MHz
(-0.1dB)
OUT
40
78
46
_______________________________________________________________________________________
3
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
AC ELECTRICAL CHARACTERISTICS (continued)
(V
= +5V, V
= 0V, SHDN ≥ 4V, R = 150Ω, V
= 1.5V, A
= +1V/V (MAX4310/MAX4311/MAX4312), A
= +2V/V
VCL
CC
EE
L
CM
VCL
(MAX4313/MAX4314/MAX4315), T = +25°C, unless otherwise noted.)
A
PARAMETER
SYMBOL
CONDITIONS
MAX4310
MIN
TYP
110
100
80
MAX UNITS
MAX4311
MAX4312
Full-Power Bandwidth
FPBW
V
= 2Vp-p
MHz
OUT
MAX4313
40
MAX4314
90
MAX4315
70
MAX4310
460
430
345
540
430
310
42
MAX4311
MAX4312
Slew Rate
SR
V
V
= 2Vp-p
= 2Vp-p
OUT
OUT
MAX4313
MAX4314
MAX4315
MAX4310/MAX4311/MAX4312
MAX4313/MAX4314/MAX4315
Settling Time to 0.1%
Gain Matching
t
ns
S
25
Matching between channels over -3dB
bandwidth
0.05
0.06
0.09
0.08
0.03
dB
A
= +1V/V,
VCL
MAX4310/MAX4311/
MAX4312
R = 150Ω to
L
V
/2
CC
Differential Gain Error
Differential Phase Error
DG
DG
%
R = 150Ω to
MAX4313/MAX4314/
MAX4315
L
V
/2
CC
A
= +1V/V,
VCL
MAX4310/MAX4311/
MAX4312
R = 150Ω to
L
V
/2
CC
degrees
R = 150Ω to
MAX4313/MAX4314/
MAX4315
L
V
/2
CC
f = 3kHz
-89
-80
-47
-95
-72
-47
-85
-76
-88
-95
-83
-76
MAX4310/
MAX4311/
MAX4312
f = 2kHz
f = 20kHz
f = 3kHz
f = 2kHz
f = 20kHz
Spurious-Free Dynamic
Range
SFDR
V
= 2Vp-p
dBc
OUT
MAX4313/
MAX4314/
MAX4315
MAX4310/MAX4311/MAX4312
MAX4313/MAX4314/MAX4315
MAX4310/MAX4311/MAX4312
MAX4313/MAX4314/MAX4315
MAX4310/MAX4311/MAX4312
MAX4313/MAX4314/MAX4315
f = 1MHz,
= 2Vp-p
Second Harmonic Distortion
Third Harmonic Distortion
Total Harmonic Distortion
dBc
dBc
dBc
V
OUT
f = 1MHz,
= 2Vp-p
V
OUT
f = 1MHz,
= 2Vp-p
THD
V
OUT
4
_______________________________________________________________________________________
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
AC ELECTRICAL CHARACTERISTICS (continued)
(V
= +5V, V
= 0V, SHDN ≥ 4V, R = 150Ω, V
= 1.5V, A
= +1V/V (MAX4310/MAX4311/MAX4312), A
= +2V/V
VCL
CC
EE
L
CM
VCL
(MAX4313/MAX4314/MAX4315), T = +25°C, unless otherwise noted.)
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
-95
-60
-52
-82
3
MAX UNITS
MAX4310/MAX4313
MAX4311/MAX4314
MAX4312MAX4315
f = 10MHz,
= 2Vp-p
All-Hostile Crosstalk
dB
V
IN
Off-Isolation
SHDN = 0, f = 10MHz, V = 2Vp-p
dB
Ω
IN
Output Impedance
Z
f = 10MHz
OUT
Input Capacitance
C
Channel on or off
f = 10kHz
2
pF
IN
Input Voltage-Noise Density
Input Current-Noise Density
e
14
nV/√Hz
pA/√Hz
n
i
n
f = 10kHz
1.3
SWITCHING CHARACTERISTICS
Channel Switching Time
t
40
50
ns
ns
SW
Enable Time from Shutdown
t
ON
Disable Time to Shutdown
Switching Transient
t
120
10
ns
OFF
mVp-p
Typical Operating Characteristics
(V
= +5V, V = 0V, SHDN ≥ 4V, R = 150Ω to V /2, V
= 1.5V, A
= +1V/V (MAX4310/MAX4311/MAX4312), A
= +2V/V
CC
EE
L
CC
CM
VCL
VCL
(MAX4313/MAX4314/MAX4315), T = +25°C, unless otherwise noted.)
A
MAX4310
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4310
GAIN FLATNESS vs. FREQUENCY
MAX4310
LARGE-SIGNAL GAIN vs. FREQUENCY
4
0.5
4
V
OUT
= 100mVp-p
V
= 100mVp-p
3
2
0.4
0.3
0.2
0.1
0
V
OUT
= 2Vp-p
OUT
3
2
1
1
0
0
-1
-2
-3
-4
-1
-2
-3
-4
-0.1
-0.2
-0.3
-5
-6
-0.4
-0.5
-5
-6
100k
1M
10M
FREQUENCY (Hz)
100M
1G
100k
1M
10M
100M
1G
100k
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
_______________________________________________________________________________________
5
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
Typical Operating Characteristics (continued)
(V
= +5V, V = 0V, SHDN ≥ 4V, R = 150Ω to V /2, V
= 1.5V, A
= +1V/V (MAX4310/MAX4311/MAX4312), A
= +2V/V
CC
EE
L
CC
CM
VCL
VCL
(MAX4313/MAX4314/MAX4315), T = +25°C, unless otherwise noted.)
A
MAX4311
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4311
GAIN FLATNESS vs. FREQUENCY
MAX4311
LARGE-SIGNAL GAIN vs. FREQUENCY
2
1
0.2
0.1
2
1
V
OUT
= 100mVp-p
V
OUT
= 100mVp-p
V
OUT
= 2Vp-p
0
0
0
-1
-2
-3
-4
-5
-6
-7
-8
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-1
-2
-3
-4
-5
-6
-7
-8
1
10
100
1000
1
10
100
1000
1
10
100
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX4312
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4312
GAIN FLATNESS vs. FREQUENCY
MAX4312
LARGE-SIGNAL GAIN vs. FREQUENCY
2
1
0.2
0.1
2
1
V
= 100mVp-p
V
OUT
= 100mVp-p
V
OUT
= 2Vp-p
OUT
0
0
0
-1
-2
-3
-4
-5
-6
-7
-8
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-1
-2
-3
-4
-5
-6
-7
-8
1
10
100
1000
1
10
100
1000
1
10
100
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX4313
LARGE-SIGNAL GAIN vs. FREQUENCY
MAX4313
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4313
GAIN FLATNESS vs. FREQUENCY
4
4
0.5
V = 2Vp-p
OUT
V
OUT
= 100mVp-p
V
= 100mVp-p
OUT
3
2
3
2
0.4
0.3
0.2
0.1
0
1
1
0
0
-1
-2
-3
-4
-1
-2
-3
-4
-0.1
-0.2
-0.3
-5
-6
-5
-6
-0.4
-0.5
100k
1M
10M
100M
1G
100k
1M
10M
FREQUENCY (Hz)
100M
1G
100k
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
6
_______________________________________________________________________________________
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
Typical Operating Characteristics (continued)
(V
= +5V, V = 0V, SHDN ≥ 4V, R = 150Ω to V /2, V
= 1.5V, A
= +1V/V (MAX4310/MAX4311/MAX4312), A
= +2V/V
CC
EE
L
CC
CM
VCL
VCL
(MAX4313/MAX4314/MAX4315), T = +25°C, unless otherwise noted.)
A
MAX4314
LARGE-SIGNAL GAIN vs. FREQUENCY
MAX4314
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4314
GAIN FLATNESS vs. FREQUENCY
2
1
2
1
0.2
0.1
V
OUT
= 100mVp-p
V
OUT
= 2Vp-p
V
OUT
= 100mVp-p
0
0
0
-1
-2
-3
-4
-5
-6
-7
-8
-1
-2
-3
-4
-5
-6
-7
-8
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
1
10
100
1000
1
10
100
1000
1
10
100
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX4315
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4315
LARGE-SIGNAL GAIN vs. FREQUENCY
MAX4315
GAIN FLATNESS vs. FREQUENCY
2
1
2
1
0.2
0.1
V
OUT
= 100mVp-p
V
OUT
= 100mVp-p
V
OUT
= 2Vp-p
0
0
0
-1
-2
-3
-4
-5
-6
-7
-8
-1
-2
-3
-4
-5
-6
-7
-8
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
1
10
100
1000
1
10
100
1000
1
10
100
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX4310/MAX4311/MAX4312
HARMONIC DISTORTION vs. FREQUENCY
MAX4313/MAX4314/MAX4315
HARMONIC DISTORTION vs. FREQUENCY
POWER-SUPPLY REJECTION
vs. FREQUENCY
-20
-20
0
V
OUT
= 2Vp-p
V
OUT
= 2Vp-p
-10
-20
-30
-40
-50
-60
-70
-80
-30
-40
-50
-60
-70
-80
-30
-40
-50
-60
-70
-80
2ND HARMONIC
2ND HARMONIC
3RD HARMONIC
3RD HARMONIC
-90
-90
-90
-100
-100
-100
100k
1M
10M
100M
100k
1M
10M
100M
100k
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
_______________________________________________________________________________________
7
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
Typical Operating Characteristics (continued)
(V
= +5V, V = 0V, SHDN ≥ 4V, R = 150Ω to V /2, V
= 1.5V, A
= +1V/V (MAX4310/MAX4311/MAX4312), A
= +2V/V
CC
EE
L
CC
CM
VCL
VCL
(MAX4313/MAX4314/MAX4315), T = +25°C, unless otherwise noted.)
A
MAX4310/MAX4311/MAX4312
COMMON-MODE REJECTION vs. FREQUENCY
MAX4310/MAX4313
All-HOSTILE CROSSTALK vs. FREQUENCY
OFF-ISOLATION vs. FREQUENCY
-10
0
50
-20
-30
-40
-50
-60
-70
-80
-90
-10
-20
-30
-40
-50
-60
-70
-80
30
10
-10
-30
-50
-70
-90
-110
-100
-110
-90
-130
-150
-100
100k
1M
10M
100M
1G
10k
100k
1M
10M
100M
1G
0.1
1
10
100
1000
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (MHz)
MAX4312/MAX4315
ALL-HOSTILE CROSSTALK vs. FREQUENCY
MAX4311/MAX4314
ALL-HOSTILE CROSSTALK vs. FREQUENCY
OUTPUT IMPEDANCE vs. FREQUENCY
50
30
50
30
100
10
10
10
1
-10
-30
-50
-70
-90
-110
-130
-150
-10
-30
-50
-70
-90
-110
-130
-150
0.1
0.01
0.1
1
10
100
1000
0.1
1
10
100
1000
100k
1M
10M
100M
1G
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (Hz)
MAX4310
LARGE-SIGNAL PULSE RESPONSE
CURRENT-NOISE DENSITY vs.
FREQUENCY (INPUT REFERRED)
VOLTAGE-NOISE DENSITY vs.
FREQUENCY (INPUT REFERRED)
100
10
1
100
IN
(1V/div)
OUT
(1V/div)
10
10ns/div
10
100
1k
10k 100k
1M
10M
10
100
1k
10k 100k
1M
10M
FREQUENCY (Hz)
FREQUENCY (Hz)
8
_______________________________________________________________________________________
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
Typical Operating Characteristics (continued)
(V
= +5V, V = 0V, SHDN ≥ 4V, R = 150Ω to V /2, V
= 1.5V, A
= +1V/V (MAX4310/MAX4311/MAX4312), A
= +2V/V
CC
EE
L
CC
CM
VCL
VCL
(MAX4313/MAX4314/MAX4315), T = +25°C, unless otherwise noted.)
A
MAX4312
LARGE-SIGNAL PULSE RESPONSE
MAX4311
LARGE-SIGNAL PULSE RESPONSE
MAX4313
LARGE-SIGNAL PULSE RESPONSE
IN
(1V/div)
IN
(500mV/div)
IN
(1V/div)
OUT
(1V/div)
OUT
(1V/div)
OUT
(1V/div)
10ns/div
10ns/div
10ns/div
MAX4310
SMALL-SIGNAL PULSE RESPONSE
MAX4314
LARGE-SIGNAL PULSE RESPONSE
MAX4315
LARGE-SIGNAL PULSE RESPONSE
IN
IN
(500mV/div)
IN
(50mV/div)
(500mV/div)
OUT
(50mV/div)
V
OUT
(1V/div)
OUT
(IV/div)
10ns/div
10ns/div
10ns/div
MAX4311
SMALL-SIGNAL PULSE RESPONSE
MAX4312
SMALL-SIGNAL PULSE RESPONSE
MAX4313
SMALL-SIGNAL PULSE RESPONSE
IN
(50mV/div)
IN
IN
(50mV/div)
(50mV/div)
OUT
(50mV/div)
OUT
(50mV/div)
OUT
(50mV/div)
10ns/div
10ns/div
10ns/div
_______________________________________________________________________________________
9
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
Typical Operating Characteristics (continued)
(V
= +5V, V = 0V, SHDN ≥ 4V, R = 150Ω to V /2, V
= 1.5V, A
= +1V/V (MAX4310/MAX4311/MAX4312), A
= +2V/V
CC
EE
L
CC
CM
VCL
VCL
(MAX4313/MAX4314/MAX4315), T = +25°C, unless otherwise noted.)
A
MAX4310
SMALL-SIGNAL PULSE RESPONSE
MAX4315
SMALL-SIGNAL PULSE RESPONSE
MAX4314
SMALL-SIGNAL PULSE RESPONSE
(C = 10pF)
L
IN
IN
IN
(50mV/div)
(50mV/div)
(50mV/div)
OUT
(50mV/div)
OUT
OUT
(50mV/div)
(50mV/div)
10ns/div
10ns/div
10ns/div
MAX4313
SMALL-SIGNAL PULSE RESPONSE
MAX4313
SMALL-SIGNAL PULSE RESPONSE
MAX4310
SMALL-SIGNAL PULSE RESPONSE
(C = 22pF)
L
(C = 10pF)
L
(C = 22pF)
L
IN
IN
IN
(50mV/div)
(50mV/div)
(50mV/div)
OUT
(50mV/div)
OUT
(50mV/div)
OUT
(50mV/div)
10ns/div
10ns/div
10ns/div
SHUTDOWN RESPONSE TIME
CHANNEL-SWITCHING TRANSIENT
SHDN
(2.0V/div)
A0
(2.5V/div)
OUT
(10mV/div)
OUT
(1V/div)
100ns/div
20ns/div
10 ______________________________________________________________________________________
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
Pin Description
PIN
MAX4311
MAX4314
NAME
FUNCTION
MAX4310
SO/µMAX
MAX4312
SO/QSOP
MAX4313
SO/µMAX
MAX4315
SO/QSOP
SO QSOP
SO QSOP
1
—
—
2
2
1
2
1
3
2
1
—
—
2
2
1
2
1
3
2
A0
A1
Channel Address Logic Input 0
Channel Address Logic Input 1
Channel Address Logic Input 2
Shutdown Input
—
12
4
—
14
4
1
—
12
4
—
14
4
1
A2
14
4
14
4
SHDN
3
3
V
Positive Power Supply
Amplifier Input 0
CC
4
5
5
5
4
5
5
5
IN0
IN1
IN2
5
7
7
6
5
7
7
6
Amplifier Input 1
—
8
10
7
—
8
10
7
Amplifier Input 2
—
—
10
12
8
9
—
—
10
12
8
9
IN3
IN4
Amplifier Input 3
Amplifier Input 4
—
—
—
—
—
—
—
10
—
—
—
10
IN5
Amplifier Input 5
—
—
—
—
—
—
11
12
—
—
—
—
—
—
11
12
IN6
IN7
Amplifier Input 6
Amplifier Input 7
Negative Power Supply. Ground
for single-supply operation.
6
11
13
13
6
11
13
13
V
EE
7
—
8
13
—
14
15
—
16
15
—
16
—
7
—
13
14
—
15
16
—
15
16
FB
Amplifier Feedback Input
Ground
GND
OUT
8
Amplifier Output
3, 6, 3, 6, 8,
9, 11
3, 6, 3, 6, 8,
9, 11
Not connected. Tie to ground
plane for optimal performance.
—
—
—
—
N.C.
9
9
______________________________________________________________________________________ 11
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
the supply rail. Local feedback around the output stage
Detailed Description
ensures low open-loop output impedance to reduce
The MAX4310/MAX4311/MAX4312 combine 2-channel,
gain sensitivity to load variations. This feedback also
4-channel, or 8-channel multiplexers, respectively, with
produces demand-driven bias current to the output
an adjustable-gain output amplifier optimized for
transistors for 95mA drive capability while constrain-
closed-loop gains of +1V/V (0dB) or greater. The
ing total supply current to only 6.1mA.
MAX4313/MAX4314/MAX4315 combine 2-channel, 4-
channel, or 8-channel multiplexers, respectively, with a
+2V/V (6dB) fixed-gain amplifier, optimized for driving
back-terminated cables. These devices operate from a
single supply voltage of +4V to +10.5V, or from dual
supplies of 2V to 5.25V. The outputs may be placed
in a high-impedance state and the supply current mini-
mized by forcing the SHDN pin low. The input multi-
plexers feature short 40ns channel-switching times and
small 10mVp-p switching transients. The input capaci-
tance remains constant at 1pF whether the channel is
on or off, providing a predictable input impedance to
the signal source. These devices feature single-supply,
rail-to-rail, voltage-feedback output amplifiers that
achieve up to 540V/µs slew rates and up to 345MHz
-3dB bandwidths. These devices also feature excellent
harmonic distortion and differential gain/phase perfor-
mance.
Feedback and Gain Resistor Selection
(MAX4310/MAX4311/MAX4312)
Select the MAX4310/MAX4311/MAX4312 gain-setting
feedback (R ) and input (R ) resistors to fit your applica-
F
G
tion. Large resistor values increase voltage noise and
interact with the amplifier’s input and PC board capaci-
tance. This can generate undesirable poles and zeros,
and can decrease bandwidth or cause oscillations. For
example, a noninverting gain of +2V/V configuration (R =
F
R ) using 1kΩ resistors, combined with 2pF of input
G
capacitance and 1pF of PC board capacitance, causes a
pole at 159MHz. Since this pole is within the amplifier
bandwidth, it jeopardizes stability. Reducing the 1kΩ
resistors to 100Ω extends the pole frequency to 1.59GHz,
but could limit output swing by adding 200Ω in parallel
with the amplifier’s load resistor.
Table 1 shows suggested RF and RG values for the
MAX4310/MAX4311/MAX4312 when operating in the
noninverting configuration (shown in Figure 1). These val-
ues provide optimal AC response using surface-mount
resistors and good layout techniques, as discussed in the
Layout and Power-Supply Bypassing section.
Applications Information
Rail-to-Rail Outputs, Ground-Sensing Input
The input common-mode range extends from the nega-
tive supply rail to V
- 2.7V with excellent common-
CC
mode rejection. Beyond this range, multiplexer
switching times may increase and the amplifier output
is a nonlinear function of the input, but does not under-
go phase reversal or latchup.
Stray capacitance at the FB pin causes feedback resis-
tor decoupling and produces peaking in the frequency-
response curve. Keep the capacitance at FB as low as
possible by using surface-mount resistors and by
avoiding the use of a ground plane beneath or beside
these resistors and the FB pin. Some capacitance is
unavoidable; if necessary, its effects can be neutralized
by adjusting RF. Use 1% resistors to maintain consis-
tency over a wide range of production lots.
The output swings to within 250mV of V
EE
and 40mV of
CC
V
with a 10kΩ load. With a 150Ω load to ground, the
output swings from 30mV above V to within 730mV of
EE
75 CABLE
R
T
4
5
75 CABLE
IN0
75
OUT 8
FB 7
Table 1. Bandwidth and Gain with
Suggested Gain-Setting resistors
(MAX4310/MAX4311/MAX4312)
R
T
T
75
R
F
R
T
75 CABLE
75
IN1
A0
GAIN
(V/V)
GAIN
(d B)
R
( )
R
( )
-3dB BW 0.1dB BW
F
G
R
(MHz)
(MHz)
R
G
75
1
2
0
6
0
280
80
60
30
4
MAX4310
500
500
500
500
120
56
1
5
14
20
20
10
10
2
Figure 1. MAX4310 Noninverting Gain Configuration
12 ______________________________________________________________________________________
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
0
-1
-2
-3
20
0
-20
-40
-4
-5
-60
-80
-6
-7
-8
-9
-100
-120
-140
-160
-10
0
50 100 150 200 250 300 350 400 450 500
LOGIC-LOW THRESHOLD (mV ABOVE V
0
50 100 150 200 250 300 350 400 450 500
LOGIC-LOW THRESHOLD (mV ABOVE V
)
EE
)
EE
Figure 4. Logic-Low Input Current vs. V with 10kΩ Series
Figure 2. Logic-Low Input Current vs. V (SHDN, A0, A1, A2)
IL
IL
Resistor
LOGIC INPUT
Layout and Power-Supply Bypassing
The MAX4310–MAX4315 have very high bandwidths and
consequently require careful board layout, including the
possible use of constant-impedance microstrip or
stripline techniques.
10k
IN-
SHDN, A0, A1, A2
To realize the full AC performance of these high-speed
amplifiers, pay careful attention to power-supply bypass-
ing and board layout. The PC board should have at least
two layers: a signal and power layer on one side, and a
large, low-impedance ground plane on the other side.
The ground plane should be as free of voids as possible,
with one exception: the feedback (FB) should have as low
a capacitance to ground as possible. Therefore, layers
that do not incorporate a signal or power trace should not
have a ground plane.
OUT
MAX431_
IN+
Figure 3. Circuit to Reduce Logic-Low Input Current
Low-Power Shutdown Mode
All parts feature a low-power shutdown mode that is
activated by driving the SHDN input low. Placing the
amplifier in shutdown mode reduces the quiescent sup-
ply current to 560µA and places the output into a high-
impedance state, typically 35kΩ. By tying the outputs
of several devices together and disabling all but one of
the paralleled amplifiers’ outputs, multiple devices may
be paralleled to construct larger switch matrices.
Whether or not a constant-impedance board is used, it is
best to observe the following guidelines when designing
the board:
1) Do not use wire-wrapped boards (they are too
inductive) or breadboards (they are too capacitive).
2) Do not use IC sockets; they increase parasitic
capacitance and inductance.
For MAX4310/MAX4311/MAX4312 application circuits
operating with a closed-loop gain of +2V/V or greater,
consider the external-feedback network impedance of
all devices used in the mux application when calculat-
ing the total load on the output amplifier of the active
device. The MAX4313/MAX4314/MAX4315 have a fixed
gain of +2V/V that is internally set with two 500Ω thin-
film resistors. The impedance of the internal feedback
resistors must be taken into account when operating
multiple MAX4313/MAX4314/MAX4315s in large multi-
plexer applications. For normal operation, drive SHDN
high. If the shutdown function is not used, connect
3) Keep signal lines as short and straight as possible.
Do not make 90° turns; round all corners.
4) Observe high-frequency bypassing techniques to
maintain the amplifier’s accuracy and stability.
5) Use surface-mount components. They generally
have shorter bodies and lower parasitic reactance,
yielding better high-frequency performance than
through-hole components.
SHDN to V
.
CC
______________________________________________________________________________________ 13
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
30
75 CABLE
R
T
4
5
75 CABLE
25
20
15
10
IN0
75
OUT
OUT 8
R
T
T
75
500
500
R
T
75 CABLE
75
IN1
A0
R
75
MAX4313
GND
1
7
0
50
100
150
200
250
CAPACITIVE LOAD (pF)
Figure 5. Video Line Driver
Figure 8. Optimal Isolation Resistance vs. Capacitive Load
4
3
2
4
3
15pF LOAD
2
120pF LOAD
90pF LOAD
47pF LOAD
10pF LOAD
1
0
1
0
-1
-2
-3
-4
-5
-6
-1
-2
-3
-4
-5
5pF LOAD
V
= 100mVp-p
V
= 100mVp-p
OUT
OUT
-6
100k
1M
10M
100M
1G
100k
1M
10M
FREQUENCY (Hz)
100M
1G
FREQUENCY (Hz)
Figure 6. Small-Signal Gain vs. Frequency with a Capacitive
Load and No-Isolation Resistor
Figure 9. Small-Signal Gain vs. Frequency with a Capacitive
Load and 27Ω No-Isolation Resistor
75 CABLE
The bypass capacitors should include a 100nF, ceram-
ic surface-mount capacitor between each supply pin
and the ground plane, located as close to the package
as possible. Optionally, place a 10µF tantalum capaci-
tor at the power-supply pin’s point of entry to the PC
board to ensure the integrity of incoming supplies. The
power-supply trace should lead directly from the tanta-
4
IN0
R
ISO
OUT 8
R
T
75
500
500
75 CABLE
C
L
R
L
5
IN1
A0
lum capacitor to the V
and V
pins. To minimize
EE
CC
R
T
75
parasitic inductance, keep PC traces short and use
surface-mount components. If input termination resis-
tors and output back-termination resistors are used,
they should be surface-mount types, and should be
placed as close to the IC pins as possible.
MAX4313
GND
1
7
Figure 7. Using an Isolation Resistor (R ) for High-Capacitive
ISO
Loads
14 ______________________________________________________________________________________
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
Table 2. Input Control Logic
MAX4310/MAX4313
SHDN
A2
—
—
—
A1
—
—
—
A0
X
CHANNEL SELECTED
0
1
1
None, High-Z Output
0
0
1
1
MAX4311/MAX4314
SHDN
A2
—
—
—
—
—
A1
X
A0
X
CHANNEL SELECTED
0
1
1
1
1
None, High-Z Output
0
0
0
1
2
3
0
1
1
0
1
1
MAX4312/MAX4315
SHDN
A2
X
0
A1
X
0
A0
X
0
CHANNEL SELECTED
Figure 10. High-Speed EV Board Layout—Component Side
0
1
1
1
1
1
1
1
1
None, High-Z Output
0
1
2
3
4
5
6
7
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
Another concern when driving capacitive loads origi-
nates from the amplifier’s output impedance, which
appears inductive at high frequencies. This inductance
forms an L-C resonant circuit with the capacitive load,
which causes peaking in the frequency response and
degrades the amplifier’s phase margin.
Although the MAX4310–MAX4315 are optimized for AC
performance and are not designed to drive highly capaci-
tive loads, they are capable of driving up to 20pF without
oscillations. However, some peaking may occur in the fre-
quency domain (Figure 6). To drive larger capacitive
loads or to reduce ringing, add an isolation resistor
between the amplifier’s output and the load (Figure 7).
Figure 11. High-Speed EV Board Layout—Solder Side
Video Line Driver
The MAX4310–MAX4315 are well-suited to drive coaxi-
al transmission lines when the cable is terminated at
both ends, as shown in Figure 5. Cable frequency
response can cause variations in the signal’s flatness.
The value of RISO depends on the circuit’s gain and
the capacitive load (Figure 8). Figure 9 shows the
MAX4310–MAX4315 frequency response with the isola-
tion resistor and a capacitive load. With higher capaci-
tive values, bandwidth is dominated by the RC network
Driving Capacitive Loads
A correctly terminated transmission line is purely resis-
tive and presents no capacitive load to the amplifier.
Reactive loads decrease phase margin and may pro-
duce excessive ringing and oscillation (see Typical
Operating Characteristics).
formed by R
and C ; the bandwidth of the amplifier
L
ISO
itself is much higher. Also note that the isolation resistor
forms a divider that decreases the voltage delivered to
the load.
______________________________________________________________________________________ 15
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
SMA connectors were used for best high-frequency
performance. Inputs and outputs do not match a 75Ω
line, but this does not affect performance since dis-
tances are extremely short. However, in applications
that require lead lengths greater than one-quarter of the
wavelength of the highest frequency of interest, use
constant-impedance traces. Fully assembled evalua-
tion boards are available for the MAX4313 in an SO
package.
Digital Interface
The multiplexer architecture of the MAX4310–MAX4315
ensures that no two input channels are ever connected
together. Channel selection is accomplished by apply-
ing a binary code to channel address inputs. The
address decoder selects input channels, as shown in
Table 2. All digital inputs are CMOS compatible.
High-Speed Evaluation Board
Figures 10 and 11 show the evaluation board and pre-
sent a suggested layout for the circuits. This board was
developed using the techniques described in the
Layout and Power-Supply Bypassing section. The
smallest available surface-mount resistors were used
for feedback and back-termination to minimize their
distance from the part, reducing the capacitance asso-
ciated with longer lead lengths.
Chip Information
TRANSISTOR COUNT: 156
Typical Operating Circuit
+4V TO +10.5V
µF
0.1
3
V
CC
MAX4313
5
4
VIDEO
75Ω CABLE
IN1
IN0
A0
75Ω
OUTPUT
OUT 8
500Ω
75Ω
500Ω
GND
V
SHDN
2
EE
6
1
7
16 ______________________________________________________________________________________
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
Pin Configurations
TOP VIEW
MAX4310
A0
1
2
3
4
8
7
6
5
OUT
FB
+
-
SHDN
V
V
EE
CC
MUX
IN0
IN1
SO/µMAX
MAX4311
MUX
MAX4311
MAX4312
MUX
A1
A0
1
2
3
4
5
6
7
14
13
12
11
10
9
A1
A0
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
A2
A1
A0
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
OUT
FB
OUT
FB
OUT
FB
N.C.
N.C.
SHDN
SHDN
SHDN
MUX
V
CC
V
CC
V
CC
V
V
EE
V
EE
EE
IN0
N.C.
IN1
IN0
N.C.
IN1
IN0
IN1
IN2
IN3
IN3
N.C.
IN2
IN3
IN7
IN6
IN5
IN4
N.C.
IN2
8
N.C.
N.C.
SO
QSOP
SO/QSOP
MAX4314
MUX
MAX4315
MAX4314
MAX4313
A2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
A1
A0
1
2
3
4
5
6
7
14 OUT
A1
A0
1
16
15
14
13
12
11
10
9
OUT
OUT
500Ω
500Ω
500Ω
500Ω
500Ω
A1
A0
GND
13
2
3
4
5
6
7
8
GND
SHDN
GND
1
2
3
4
8
7
6
5
A0
OUT
GND
500Ω
500Ω
500Ω
N.C.
SHDN
12
11
10
9
N.C.
SHDN
SHDN
MUX
MUX
V
V
CC
V
V
CC
V
EE
EE
CC
V
EE
V
CC
V
EE
MUX
IN0
IN1
IN2
IN3
IN0
N.C.
IN1
IN3
N.C.
IN2
IN0
N.C.
IN1
IN7
IN6
IN5
IN4
IN3
IN1
IN0
N.C.
IN2
SO/µMAX
8
N.C.
N.C.
SO
QSOP
SO/QSOP
N.C. = NOT INTERNALLY CONNECTED. TIE TO GROUND PLANE FOR OPTIMAL PERFORMANCE.
______________________________________________________________________________________ 17
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
4X S
8
8
MILLIMETERS
INCHES
DIM MIN
MAX
MAX
MIN
-
-
0.043
0.006
0.037
0.014
0.007
0.120
1.10
0.15
0.95
0.36
0.18
3.05
A
0.002
0.030
0.010
0.005
0.116
0.05
0.75
0.25
0.13
2.95
A1
A2
b
E
H
ÿ 0.50 0.1
c
D
e
0.0256 BSC
0.65 BSC
0.6 0.1
E
H
0.116
0.188
0.016
0∞
0.120
2.95
4.78
0.41
0∞
3.05
5.03
0.66
6∞
0.198
0.026
6∞
L
1
1
α
S
0.6 0.1
0.0207 BSC
0.5250 BSC
BOTTOM VIEW
D
TOP VIEW
A1
A2
A
c
α
e
L
b
SIDE VIEW
FRONT VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, 8L uMAX/uSOP
APPROVAL
DOCUMENT CONTROL NO.
REV.
1
21-0036
J
1
18 ______________________________________________________________________________________
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
______________________________________________________________________________________ 19
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
INCHES
MILLIMETERS
DIM
A
MIN
MAX
0.069
0.010
0.019
0.010
MIN
1.35
0.10
0.35
0.19
MAX
1.75
0.25
0.49
0.25
0.053
0.004
0.014
0.007
N
A1
B
C
e
0.050 BSC
1.27 BSC
E
0.150
0.228
0.016
0.157
0.244
0.050
3.80
5.80
0.40
4.00
6.20
1.27
E
H
H
L
VARIATIONS:
INCHES
1
MILLIMETERS
DIM
D
MIN
MAX
0.197
0.344
0.394
MIN
4.80
8.55
9.80
MAX
5.00
N
8
MS012
AA
TOP VIEW
0.189
0.337
0.386
D
8.75 14
10.00 16
AB
D
AC
D
C
A
B
0∞-8∞
e
A1
L
FRONT VIEW
SIDE VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, .150" SOIC
APPROVAL
DOCUMENT CONTROL NO.
REV.
1
21-0041
B
1
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2002 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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