LT6234IDD#PBF [Linear]
LT6234 - 60MHz, Rail-to-Rail Output, 1.9nV/rtHz, 1.2mA Op Amp Family; Package: DFN; Pins: 8; Temperature Range: -40°C to 85°C;
| 型号： | LT6234IDD#PBF |
| 厂家： | 
Linear |
| 描述： | LT6234 - 60MHz, Rail-to-Rail Output, 1.9nV/rtHz, 1.2mA Op Amp Family; Package: DFN; Pins: 8; Temperature Range: -40°C to 85°C 放大器 光电二极管 |
| 文件： | 总24页 (文件大小：767K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LT6233/LT6233-10
LT6234/LT6235
60MHz, Rail-to-Rail Output,
1.9nV/√Hz, 1.2mA Op Amp Family
FeaTures
DescripTion
n Low Noise Voltage: 1.9nV/√Hz
n Low Supply Current: 1.2mA/Amp Max
n Low Offset Voltage: 350µV Max
n Gain-Bandwidth Product:
LT6233: 60MHz; A ≥ 1
LT6233-10: 375MHz; A ≥ 10
n Wide Supply Range: 3V to 12.6V
n Output Swings Rail-to-Rail
n Common Mode Rejection Ratio: 115dB Typ
n Output Current: 30mA
n Operating Temperature Range: –40°C to 85°C
n LT6233 Shutdown to 10µA Maximum
n LT6233/LT6233-10 in a Low Profile (1mm)
ThinSOT™ Package
n Dual LT6234 in 8-Pin SO and Tiny DFN Packages
n LT6235 in a 16-Pin SSOP Package
The LT®6233/LT6234/LT6235 are single/dual/quad low
noise, rail-to-rail output unity-gain stable op amps that
feature 1.9nV/√Hz noise voltage and draw only 1.2mA of
supply current per amplifier. These amplifiers combine
very low noise and supply current with a 60MHz gain-
bandwidth product, a 17V/µs slew rate and are optimized
for low supply voltage signal conditioning systems. The
LT6233-10 is a single amplifier optimized for higher gain
applications resulting in higher gain bandwidth and slew
rate. The LT6233 and LT6233-10 include an enable pin
that can be used to reduce the supply current to less
than 10µA.
V
V
Theamplifierfamilyhasanoutputthatswingswithin50mV
of either supply rail to maximize the signal dynamic range
in low supply applications and is specified on 3.3V, 5V and
5Vsupplies.Thee • √I
productof2.1peramplifier
n
SUPPLY
is among the most noise efficient of any op amp.
applicaTions
The LT6233/LT6233-10 are available in the 6-lead SOT-23
package and the LT6234 dual is available in the 8-pin SO
package with standard pinouts. For compact layouts,
the dual is also available in a tiny dual fine pitch leadless
package (DFN). The LT6235 is available in the 16-pin
SSOP package.
n
Ultrasound Amplifiers
n
Low Noise, Low Power Signal Processing
n
Active Filters
Driving A/D Converters
Rail-to-Rail Buffer Amplifiers
n
n
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
Typical applicaTion
Noise Voltage and Unbalanced
Noise Current vs Frequency
Low Noise Low Power Instrumentation Amplifier
6
5
4
3
2
1
0
6
5
4
3
2
1
0
+
V
= 2ꢀ5V
V
S
S
A
T
= 25°C
= 0V
+
R4
R6
V
IN
CM
499Ω
499Ω
±/2 LT6234
+
V
S
R2
47ꢀΩ
+
–
R±
49.9Ω
LT6233
V
OUT
NOISE VOLTAGE
NOISE CURRENT
EN
R3
47ꢀΩ
Rꢀ
499Ω
R7
499Ω
–
V
S
62334ꢀ TA0±a
±/2 LT6234
–
10
100
1k
10k
100k
IN
A
= 20
I
E
= 3mA
= 8µV
V
S
FREQUENCY (Hz)
BW = 2.8MHz
= ±±.ꢀV ꢁt ±ꢀV
INPUT REFERRED,
RMS
MEASUREMENT BW = 4MHz
N
–
V
V
S
623345 TA01b
S
623345fc
1
LT6233/LT6233-10
LT6234/LT6235
absoluTe MaxiMuM raTings (Note 1)
+
–
Junction Temperature (DD Package).................... 125°C
Storage Temperature Range .................. –65°C to 150°C
Storage Temperature Range
Total Supply Voltage (V to V )..............................12.6V
Input Current (Note 2)......................................... 40mA
Output Short-Circuit Duration (Note 3) ............ Indefinite
Operating Temperature Range (Note 4)....–40°C to 85°C
Specified Temperature Range (Note 5) ....–40°C to 85°C
Junction Temperature ........................................... 150°C
(DD Package)........................................ –65°C to 125°C
Lead Temperature (Soldering, 10 sec)...................300°C
pin conFiguraTion
TOP VIEW
TOP VIEW
+
+
OUT A
–IN A
+IN A
1
2
3
4
8
7
6
5
V
OUT 1
–
6 V
OUT B
–IN B
+IN B
–
+
5 ENABLE
4 –IN
V
2
–
+
–
+IN 3
V
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
T
= 150°C, θ = 250°C/W
JMAX
JA
T
= 125°C, θ = 160°C/W
JMAX
JA
–
UNDERSIDE METAL CONNECTED TO V (PCB CONNECTION OPTIONAL)
TOP VIEW
OUT A
–IN A
+IN A
1
2
3
4
5
6
7
8
16 OUT D
15 –IN D
TOP VIEW
–
+
+–A
D
C
+
OUT A
–IN A
+IN A
1
2
3
4
8
7
6
5
V
14
13
12
11
10
9
+IN D
+
–
OUT B
–IN B
+IN B
V
V
–
+
+
+
–
+IN B
–IN B
OUT B
NC
+IN C
–IN C
OUT C
NC
–
+
–B
–
V
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C, θ = 190°C/W
JA
GN PACKAGE
16-LEAD NARROW PLASTIC SSOP
T
JMAX
= 150°C, θ = 135°C/W
JA
623345fc
2
LT6233/LT6233-10
LT6234/LT6235
orDer inForMaTion
LEAD FREE FINISH
LT6233CS6#PBF
LT6233IS6#PBF
LT6233CS6-10#PBF
LT6233IS6-10#PBF
LT6234CS8#PBF
LT6234IS8#PBF
LT6234CDD#PBF
LT6234IDD#PBF
LT6235CGN#PBF
LT6235IGN#PBF
TAPE AND REEL
PART MARKING* PACKAGE DESCRIPTION
SPECIFIED TEMPERATURE RANGE
0°C to 70°C
LT6233CS6#TRPBF
LT6233IS6#TRPBF
LT6233CS6-10#TRPBF
LT6233IS6-10#TRPBF
LT6234CS8#TRPBF
LT6234IS8#TRPBF
LT6234CDD#TRPBF
LT6234IDD#TRPBF
LT6235CGN#TRPBF
LT6235IGN#TRPBF
LTAFL
LTAFL
LTAFM
LTAFM
6234
6-Lead Plastic TS0T-23
6-Lead Plastic TS0T-23
–40°C to 85°C
6-Lead Plastic TS0T-23
0°C to 70°C
6-Lead Plastic TS0T-23
–40°C to 85°C
8-Lead Plastic SO
0°C to 70°C
6234I
LAET
LAET
6235
8-Lead Plastic SO
–40°C to 85°C
0°C to 70°C
8-Lead (3mm × 3mm) Plastic DFN
8-Lead (3mm × 3mm) Plastic DFN
16-Lead Narrow Plastic SSOP
16-Lead Narrow Plastic SSOP
–40°C to 85°C
0°C to 70°C
6235I
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
elecTrical characTerisTics TA = 25°C, VS = 5V, 0V; VS = 3.3V, 0V; VCM = VOUT = half supply,
ENABLE = 0V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
LT6233S6, LT6233S6-10
LT6234S8, LT6235GN
LT6234DD
100
50
75
500
350
450
µV
µV
µV
Input Offset Voltage Match
(Channel-to-Channel) (Note 6)
80
600
µV
I
I
Input Bias Current
1.5
0.04
0.04
220
1.9
3
µA
µA
µA
B
I Match (Channel-to-Channel) (Note 6)
B
0.3
0.3
Input Offset Current
OS
Input Noise Voltage
0.1Hz to 10Hz
nV
P-P
e
Input Noise Voltage Density
f = 10kHz, V = 5V
3
nV/√Hz
n
S
i
n
Input Noise Current Density, Balanced Source
Input Noise Current Density, Unbalanced Source
f = 10kHz, V = 5V, R = 10k
0.43
0.78
pA/√Hz
pA/√Hz
S
S
f = 10kHz, V = 5V, R = 10k
S
S
Input Resistance
Input Capacitance
Large-Signal Gain
Common Mode
22
25
MΩ
kΩ
Differential Mode
C
A
Common Mode
Differential Mode
2.5
4.2
pF
pF
IN
V = 5V, V = 0.5V to 4.5V, R = 10k to V /2
73
18
140
35
V/mV
V/mV
VOL
S
O
L
L
S
V = 5V, V = 0.5V to 4.5V, R = 1k to V /2
S
O
S
V = 3.3V, V = 0.65V to 2.65V, R = 10k to V /2
53
11
100
20
V/mV
V/mV
S
O
L
S
V = 3.3V, V = 0.65V to 2.65V, R = 1k to V /2
S
O
L
S
V
Input Voltage Range
Guaranteed by CMRR, V = 5V, 0V
1.5
1.15
4
2.65
V
V
CM
S
Guaranteed by CMRR, V = 3.3V, 0V
S
CMRR
Common Mode Rejection Ratio
CMRR Match (Channel-to-Channel) (Note 6)
V = 5V, V = 1.5V to 4V
90
85
115
110
dB
dB
S
CM
V = 3.3V, V = 1.15V to 2.65V
S
CM
V = 5V, V = 1.5V to 4V
84
115
dB
623345fc
3
S
CM
LT6233/LT6233-10
LT6234/LT6235
elecTrical characTerisTics TA = 25°C, VS = 5V, 0V; VS = 3.3V, 0V; VCM = VOUT = half supply,
ENABLE = 0V, unless otherwise noted.
SYMBOL PARAMETER
PSRR Power Supply Rejection Ratio
CONDITIONS
V = 3V to 10V
MIN
90
84
3
TYP
115
115
MAX
UNITS
dB
S
PSRR Match (Channel-to-Channel) (Note 6)
Minimum Supply Voltage (Note 7)
V = 3V to 10V
S
dB
V
V
V
Output Voltage Swing Low (Note 8)
No Load
4
40
mV
mV
mV
mV
OL
OH
I
= 5mA
75
180
320
240
SINK
V = 5V, I
= 15mA
SINK
165
125
S
V = 3.3V, I
= 10mA
SINK
S
Output Voltage Swing High (Note 8)
Short-Circuit Current
No Load
5
85
220
165
50
mV
mV
mV
mV
I
= 5mA
195
410
310
SOURCE
V = 5V, I
= 15mA
SOURCE
= 10mA
SOURCE
S
V = 3.3V, I
S
I
I
I
V = 5V
40
35
55
50
mA
mA
SC
S
V = 3.3V
S
Supply Current per Amplifier
Disabled Supply Current per Amplifier
1.05
0.2
1.2
10
mA
µA
S
+
ENABLE = V – 0.35V
ENABLE = 0.3V
ENABLE Pin Current
–25
–75
0.3
µA
V
ENABLE
V
V
ENABLE Pin Input Voltage Low
ENABLE Pin Input Voltage High
Output Leakage Current
Turn-On Time
L
+
V – 0.35
V
H
+
ENABLE = V – 0.35V, V = 1.5V to 3.5V
0.2
500
76
10
µA
ns
µs
O
t
t
ENABLE = 5V to 0V, R = 1k, V = 5V
L S
ON
Turn-Off Time
ENABLE = 0V to 5V, R = 1k, V = 5V
L S
OFF
GBW
Gain-Bandwidth Product
Frequency = 1MHz, V = 5V
55
320
MHz
MHz
S
LT6233-10
SR
Slew Rate
V = 5V, A = –1, R = 1k, V = 1.5V to 3.5V
10
15
80
V/µs
V/µs
S
V
L
O
LT6233-10, V = 5V, A = –10, R = 1k,
S
V
L
V = 1.5V to 3.5V
O
FPBW
Full-Power Bandwidth
V = 5V, V
= 3V (Note 9)
1.06
1.6
2.2
MHz
MHz
ns
S
OUT
P-P
LT6233-10, HD2 = HD3 ≤ 1%
0.1%, V = 5V, V = 2V, A = –1, R = 1k
t
Settling Time (LT6233, LT6234, LT6235)
175
S
S
STEP
V
L
623345fc
4
LT6233/LT6233-10
LT6234/LT6235
elecTrical characTerisTics The l denotes the specifications which apply over the 0°C < TA < 70°C
temperature range. VS = 5V, 0V; VS = 3.3V, 0V; VCM = VOUT = half supply, ENABLE = 0V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
l
l
l
V
Input Offset Voltage
LT6233CS6, LT6233CS6-10
LT6234CS8, LT6235CGN
LT6234CDD
600
450
550
µV
µV
µV
OS
l
Input Offset Voltage Match
(Channel-to-Channel) (Note 6)
800
µV
l
l
l
l
V
TC
Input Offset Voltage Drift (Note 10)
Input Bias Current
V
= Half Supply
0.5
3.0
3.5
0.4
0.4
µV/°C
µA
OS
CM
I
I
B
I Match (Channel-to-Channel) (Note 6)
B
µA
Input Offset Current
µA
OS
l
l
A
Large-Signal Gain
V = 5V, V = 0.5V to 4.5V, R = 10k to V /2
47
12
V/mV
V/mV
VOL
S
O
L
S
V = 5V, V = 0.5V to 4.5V, R = 1k to V /2
S
O
L
S
l
l
V = 3.3V, V = 0.65V to 2.65V, R = 10k to V /2
40
7.5
V/mV
V/mV
S
O
L
S
V = 3.3V, V = 0.65V to 2.65V, R = 1k to V /2
S
O
L
S
V
Input Voltage Range
Guaranteed by CMRR
CM
l
l
V = 5V, 0V
1.5
1.15
4
2.65
V
V
S
Vs = 3.3V, 0V
l
l
CMRR
PSRR
Common Mode Rejection Ratio
V = 5V, V = 1.5V to 4V
90
85
dB
dB
S
CM
V = 3.3V, V = 1.15V to 2.65V
S
CM
l
l
l
l
CMRR Match (Channel-to-Channel) (Note 6) V = 5V, V = 1.5V to 4V
84
90
84
3
dB
dB
dB
V
S
CM
Power Supply Rejection Ratio
V = 3V to 10V
S
PSRR Match (Channel-to-Channel) (Note 6) V = 3V to 10V
S
Minimum Supply Voltage (Note 7)
l
l
l
l
V
V
Output Voltage Swing Low (Note 8)
Output Voltage Swing High (Note 8)
Short-Circuit Current
No Load
= 5mA
50
mV
mV
mV
mV
OL
OH
I
195
360
265
SINK
V = 5V, I
= 15mA
SINK
S
S
V = 3.3V, I
= 10mA
SINK
l
l
l
l
No Load
60
mV
mV
mV
mV
I
= 5mA
205
435
330
SOURCE
V = 5V, I
= 15mA
SOURCE
S
V = 3.3V, I
= 10mA
SOURCE
S
l
l
I
I
I
V = 5V
35
30
mA
mA
SC
S
V = 3.3V
S
l
l
Supply Current per Amplifier
Disabled Supply Current per Amplifier
1.45
mA
µA
S
+
ENABLE = V – 0.25V
ENABLE = 0.3V
1
l
l
l
l
l
l
l
l
l
ENABLE Pin Current
ENABLE Pin Input Voltage Low
ENABLE Pin Input Voltage High
Output Leakage Current
Turn-On Time
–85
0.3
µA
V
ENABLE
V
V
L
+
V – 0.25
V
H
+
ENABLE = V – 0.25V, V = 1.5V to 3.5V
1
µA
O
t
t
ENABLE = 5V to 0V, R = 1k, V = 5V
500
120
ns
ON
L
S
Turn-Off Time
ENABLE = 0V to 5V, R = 1k, V = 5V
µs
OFF
L
S
SR
Slew Rate
V = 5V, A = –1, R = 1k, V = 1.5V to 3.5V
9
V/µs
V/µs
kHz
S
V
L
O
LT6233-10, A = –10, R = 1k, V = 1.5V to 3.5V
75
V
L
O
FPBW
Full-Power Bandwidth (Note 9)
V = 5V, V
= 3V ; LT6233C, LT6234C,
955
S
OUT
P-P
LT6235C
623345fc
5
LT6233/LT6233-10
LT6234/LT6235
elecTrical characTerisTics The l denotes the specifications which apply over the –40°C < TA < 85°C
temperature range. VS = 5V, 0V; VS = 3.3V, 0V; VCM = VOUT = half supply, ENABLE = 0V, unless otherwise noted. (Note 5)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
l
l
l
V
Input Offset Voltage
LT6233IS6, LT6233IS6-10
LT6234IS8, LT6235IGN
LT6234IDD
700
550
650
µV
µV
µV
OS
l
Input Offset Voltage Match
(Channel-to-Channel) (Note 6)
1000
µV
l
l
l
l
V
TC
Input Offset Voltage Drift (Note 10)
Input Bias Current
V
CM
= Half Supply
0.5
3
µV/°C
µA
OS
I
I
4
B
I Match (Channel-to-Channel) (Note 6)
B
0.4
0.5
µA
Input Offset Current
µA
OS
l
l
A
VOL
Large-Signal Gain
V = 5V, V = 0.5V to 4.5V, R = 10k to V /2
45
11
V/mV
V/mV
S
O
L
S
V = 5V, V = 0.5V to 4.5V, R = 1k to V /2
S
O
L
S
l
l
V = 3.3V, V = 0.65V to 2.65V, R = 10k to V /2
38
7
V/mV
V/mV
S
O
L
S
V = 3.3V, V = 0.65V to 2.65V, R = 1k to V /2
S
O
L
S
V
Input Voltage Range
Guaranteed by CMRR
V = 5V, 0V
CM
l
l
1.5
1.15
4
2.65
V
V
S
V = 3.3V, 0V
S
l
l
CMRR
PSRR
Common Mode Rejection Ratio
V = 5V, V = 1.5V to 4V
90
85
dB
dB
S
CM
V = 3.3V, V = 1.15V to 2.65V
S
CM
l
l
l
l
CMRR Match (Channel-to-Channel) (Note 6) V = 5V, V = 1.5V to 4V
84
90
84
3
dB
dB
dB
V
S
CM
Power Supply Rejection Ratio
V = 3V to 10V
S
PSRR Match (Channel-to-Channel) (Note 6) V = 3V to 10V
S
Minimum Supply Voltage (Note 7)
l
l
l
l
V
Output Voltage Swing Low (Note 8)
Output Voltage Swing High (Note 6)
Short-Circuit Current
No Load
= 5mA
50
mV
mV
mV
mV
OL
OH
I
195
370
275
SINK
V = 5V, I
= 15mA
SINK
S
S
V = 3.3V, I
= 10mA
SINK
l
l
l
l
V
No Load
60
mV
mV
mV
mV
I
= 5mA
210
445
335
SOURCE
V = 5V, I
= 15mA
SOURCE
S
V = 3.3V, I
= 10mA
SOURCE
S
l
l
I
I
I
V = 5V
30
20
mA
mA
SC
S
V = 3.3V
S
l
l
Supply Current per Amplifier
Disabled Supply Current per Amplifier
1.5
mA
µA
S
+
ENABLE = V – 0.2V
ENABLE = 0.3V
1
l
l
l
l
l
l
l
l
l
ENABLE Pin Current
ENABLE Pin Input Voltage Low
ENABLE Pin Input Voltage High
Output Leakage Current
Turn-On Time
–100
0.3
µA
V
ENABLE
V
V
L
+
V – 0.2
V
H
+
ENABLE = V – 0.2V, V = 1.5V to 3.5V
1
µA
O
t
t
ENABLE = 5V to 0V, R = 1k, V = 5V
500
135
ns
ON
L
S
Turn-Off Time
ENABLE = 0V to 5V, R = 1k, V = 5V
µs
OFF
L
S
SR
Slew Rate
V = 5V, A = –1, R = 1k, V = 1.5V to 3.5V
8
V/µs
V/µs
kHz
S
V
L
O
LT6233-10, A = –10, R = 1k, V = 1.5V to 3.5V
70
V
L
O
FPBW
Full-Power Bandwidth (Note 9)
V = 5V, V
= 3V ; LT6233I, LT6234I,
848
S
OUT
P-P
LT6235I
623345fc
6
LT6233/LT6233-10
LT6234/LT6235
elecTrical characTerisTics TA = 25°C, VS = 5V, VCM = VOUT = 0V, ENABLE = 0V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
Input Offset Voltage
LT6233S6, LT6233S6-10
LT6234S8, LT6235GN
LT6234DD
100
50
75
500
350
450
µV
µV
µV
OS
Input Offset Voltage Match
(Channel-to-Channel) (Note 6)
100
600
µV
I
I
Input Bias Current
1.5
0.04
0.04
220
1.9
3
µA
µA
µA
B
I Match (Channel-to-Channel) (Note 6)
B
0.3
0.3
Input Offset Current
OS
Input Noise Voltage
0.1Hz to 10Hz
f = 10kHz
nV
P-P
e
Input Noise Voltage Density
Input Noise Current Density, Balanced Source
Input Noise Current Density, Unbalanced Source f = 10kHz, R = 10k
3.0
nV/√Hz
n
i
n
f = 10kHz, R = 10k
0.43
0.78
pA/√Hz
pA/√Hz
S
S
Input Resistance
Input Capacitance
Large-Signal Gain
Common Mode
22
25
MΩ
kΩ
Differential Mode
C
A
V
Common Mode
Differential Mode
2.1
3.7
pF
pF
IN
V = 4.5V, R = 10k
97
28
180
55
V/mV
V/mV
VOL
O
L
V = 4.5V, R = 1k
O
L
Input Voltage Range
Guaranteed by CMRR
–3
90
84
90
84
4
V
dB
dB
dB
dB
CM
CMRR
Common Mode Rejection Ratio
CMRR Match (Channel-to-Channel) (Note 6)
Power Supply Rejection Ratio
V
CM
V
CM
= –3V to 4V
= –3V to 4V
110
120
115
115
PSRR
V = 1.5V to 5V
S
PSRR Match (Channel-to-Channel) (Note 6)
Output Voltage Swing Low (Note 8)
V = 1.5V to 5V
S
V
V
No Load
4
40
180
320
mV
mV
mV
OL
I
I
= 5mA
= 15mA
75
SINK
SINK
165
Output Voltage Swing High (Note 8)
Short-Circuit Current
No Load
5
50
195
410
mV
mV
mV
OH
I
I
= 5mA
85
SOURCE
SOURCE
= 15mA
220
I
I
40
55
mA
SC
Supply Current per Amplifier
Disabled Supply Current per Amplifier
1.15
0.2
1.4
10
mA
µA
S
ENABLE = 4.65V
ENABLE = 0.3V
I
ENABLE Pin Current
–35
–85
0.3
µA
V
ENABLE
V
V
ENABLE Pin Input Voltage Low
ENABLE Pin Input Voltage High
Output Leakage Current
Turn-On Time
L
4.65
V
H
ENABLE = 4.65V, V = 1V
0.2
900
100
10
µA
ns
µs
O
t
t
ENABLE = 5V to 0V, R = 1k
L
ON
Turn-Off Time
ENABLE = 0V to 5V, R = 1k
OFF
L
GBW
Gain-Bandwidth Product
Frequency = 1MHz
LT6233-10
42
260
60
375
MHz
MHz
SR
Slew Rate
A = –1, R = 1k, V = –2V to 2V
12
17
115
1.8
2.2
170
V/µs
V/µs
MHz
MHz
ns
V
L
O
LT6233-10, A = –10, R = 1k, V = –2V to 2V
V
L
O
FPBW
Full-Power Bandwidth
Settling Time (LT6233, LT6234, LT6235)
V
OUT
= 3V (Note 9)
1.27
P-P
LT6233-10, HD2 = HD3 ≤ 1%
0.1%, V = 2V, A = –1, R = 1k
t
S
STEP
V
L
623345fc
7
LT6233/LT6233-10
LT6234/LT6235
elecTrical characTerisTics The l denotes the specifications which apply over the 0°C < TA < 70°C
temperature range. VS = 5V, VCM = VOUT = 0V, ENABLE = 0V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
l
l
l
V
Input Offset Voltage
LT6233CS6, LT6233CS6-10
LT6234CS8, LT6235CGN
LT6234CDD
600
450
550
µV
µV
µV
OS
l
Input Offset Voltage Match
(Channel-to-Channel) (Note 6)
800
µV
l
l
l
l
V
TC
Input Offset Voltage Drift (Note 10)
Input Bias Current
0.5
3
µV/°C
µA
OS
I
I
3.5
0.4
0.4
B
I Match (Channel-to-Channel) (Note 6)
B
µA
Input Offset Current
µA
OS
l
l
A
Large-Signal Gain
V = 4.5V, R = 10k
75
22
V/mV
V/mV
VOL
O
L
V = 4.5V, R = 1k
O
L
l
l
l
l
l
V
Input Voltage Range
Guaranteed by CMRR
–3
90
84
90
84
4
V
dB
dB
dB
dB
CM
CMRR
Common Mode Rejection Ratio
CMRR Match (Channel-to-Channel) (Note 6)
Power Supply Rejection Ratio
V
CM
V
CM
= –3V to 4V
= –3V to 4V
PSRR
V = 1.5V to 5V
S
PSRR Match (Channel-to-Channel) (Note 6) V = 1.5V to 5V
S
l
l
l
V
V
Output Voltage Swing Low (Note 8)
Output Voltage Swing High (Note 8)
Short-Circuit Current
No Load
50
mV
mV
mV
OL
OH
I
I
= 5mA
195
360
SINK
SINK
= 15mA
l
l
l
No Load
60
205
435
mV
mV
mV
I
I
= 5mA
SOURCE
SOURCE
= 15mA
l
I
I
35
mA
SC
l
l
Supply Current per Amplifier
Disabled Supply Current per Amplifier
1.7
mA
µA
S
ENABLE = 4.75V
ENABLE = 0.3V
1
l
l
l
l
l
l
l
l
l
I
ENABLE Pin Current
ENABLE Pin Input Voltage Low
ENABLE Pin Input Voltage High
Output Leakage Current
Turn-On Time
–95
0.3
µA
V
ENABLE
V
V
L
4.75
V
H
ENABLE = 4.75V, V = 1V
1
µA
O
t
t
ENABLE = 5V to 0V, R = 1k
900
150
ns
ON
L
Turn-Off Time
ENABLE = 0V to 5V, R = 1k
µs
OFF
L
SR
Slew Rate
A = –1, R = 1k, V = –2V to 2V
V
11
V/µs
V/µs
MHz
L
O
LT6233-10, A = –10, R = 1k, V = –2V to 2V
105
V
L
O
FPBW
Full-Power Bandwidth (Note 9)
V
= 3V ; LT6233C, LT6234C, LT6235C
1.16
OUT
P-P
623345fc
8
LT6233/LT6233-10
LT6234/LT6235
elecTrical characTerisTics The l denotes the specifications which apply over the –40°C < TA < 85°C
temperature range. VS = 5V, VCM = VOUT = 0V, ENABLE = 0V, unless otherwise noted. (Note 5)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
l
l
l
V
OS
Input Offset Voltage
LT6233IS6, LT6233IS6-10
LT6234IS8, LT6235IGN
LT6234IDD
700
550
650
µV
µV
µV
l
Input Offset Voltage Match
(Channel-to-Channel) (Note 6)
1000
µV
l
l
l
l
V
TC
Input Offset Voltage Drift (Note 10)
Input Bias Current
0.5
3
µV/°C
µA
OS
I
I
4
B
I Match (Channel-to-Channel) (Note 6)
B
0.4
0.5
µA
Input Offset Current
µA
OS
l
l
A
Large-Signal Gain
V = 4.5V, R = 10k
68
20
V/mV
V/mV
VOL
O
L
V = 4.5V, R = 1k
O
L
l
l
l
l
l
V
Input Voltage Range
Guaranteed by CMRR
–3
90
84
90
84
4
V
dB
dB
dB
dB
CM
CMRR
Common Mode Rejection Ratio
CMRR Match (Channel-to-Channel) (Note 6)
Power Supply Rejection Ratio
V
CM
V
CM
= –3V to 4V
= –3V to 4V
PSRR
V = 1.5V to 5V
S
PSRR Match (Channel-to-Channel) (Note 6) V = 1.5V to 5V
S
l
l
l
V
V
Output Voltage Swing Low (Note 8)
Output Voltage Swing High (Note 8)
Short-Circuit Current
No Load
50
mV
mV
mV
OL
I
I
= 5mA
195
370
SINK
SINK
= 15mA
l
l
l
No Load
70
210
445
mV
mV
mV
OH
I
I
= 5mA
SOURCE
SOURCE
= 15mA
l
I
I
30
mA
SC
l
l
Supply Current per Amplifier
Disabled Supply Current per Amplifier
1.75
mA
µA
S
ENABLE = 4.8V
ENABLE = 0.3V
1
l
l
l
l
l
l
l
l
l
I
ENABLE Pin Current
ENABLE Pin Input Voltage Low
ENABLE Pin Input Voltage High
Output Leakage Current
Turn-On Time
–110
0.3
µA
V
ENABLE
V
V
L
4.8
V
H
ENABLE = 4.8V, V = 1V
1
µA
O
t
t
ENABLE = 5V to 0V, R = 1k
900
160
ns
ON
L
Turn-Off Time
ENABLE = 0V to 5V, R = 1k
µs
OFF
L
SR
Slew Rate
A = –1, R = 1k, V = –2V to 2V
V
10
V/µs
V/µs
MHz
L
O
LT6233-10, A = –10, R = 1k, V = –2V to 2V
95
V
L
O
FPBW
Full-Power Bandwidth (Note 9)
V
OUT
= 3V ; LT6233I, LT6234I, LT6235I
1.06
P-P
Note 5: The LT6233C/LT6234C/LT6235C are guaranteed to meet specified
performance from 0°C to 70°C. The LT6233C/LT6234C/LT6235C are
designed, characterized and expected to meet specified performance from
–40°C to 85°C, but are not tested or QA sampled at these temperatures.
The LT6233I/LT6234I/LT6235I are guaranteed to meet specified
performance from –40°C to 85°C.
Note 6: Matching parameters are the difference between the two amplifiers
A and D and between B and C of the LT6235; between the two amplifiers
of the LT6234. CMRR and PSRR match are defined as follows: CMRR and
PSRR are measured in µV/V on the matched amplifiers. The difference is
calculated between the matching sides in µV/V. The result is converted to
dB.
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Inputs are protected by back-to-back diodes. If the differential
input voltage exceeds 0.7V, the input current must be limited to less than
40mA.
Note 3: A heat sink may be required to keep the junction temperature
below the absolute maximum rating when the output is shorted
indefinitely.
Note 4: The LT6233C/LT6233I the LT6234C/LT6234I, and LT6235C/LT6235I
are guaranteed functional over the temperature range of –40°C to 85°C.
623345fc
9
LT6233/LT6233-10
LT6234/LT6235
elecTrical characTerisTics
Note 7: Minimum supply voltage is guaranteed by power supply rejection
Note 9: Full-power bandwidth is calculated from the slew rate:
FPBW = SR/2πV
ratio test.
P
Note 8: Output voltage swings are measured between the output and
power supply rails.
Note 10: This parameter is not 100% tested.
Typical perForMance characTerisTics
(LT6233/LT6234/LT6235)
Supply Current vs Supply Voltage
(Per Amplifier)
Offset Voltage vs Input Common
Mode Voltage
VOS Distribution
2.0
1.5
1.0
0.5
0
500
400
60
50
40
30
20
10
0
V
= 5V, 0V
V
V
= 5V, 0V
CM
S
S
+
= V /2
S8
300
T
= 125°C
= 25°C
A
200
T
100
A
0
–100
–200
–300
–400
–500
T
= –55°C
A
T
A
= –55°C
T
= 25°C
A
T
= 125°C
A
50 100
0
2
4
6
8
10
12
14
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
–200 –150 –100 –50
0
150 200
INPUT OFFSET VOLTAGE (µV)
TOTAL SUPPLY VOLTAGE (V)
INPUT COMMON MODE VOLTAGE (V)
623345 GO2
623345 GO3
623345 GO1
Input Bias Current
vs Common Mode Voltage
Output Saturation Voltage
vs Load Current (Output Low)
Input Bias Current vs Temperature
10
1
6
5
6
5
V
= 5V, 0V
V
= 5V, 0V
V
= 5V, 0V
S
S
S
4
4
3
T
= 125°C
A
0.1
T
= –55°C
3
A
2
T
= –55°C
A
V
= 4V
CM
2
0.01
0.001
0.0001
T
A
= 125°C
1
V
= 1.5V
T
= 25°C
CM
A
1
T
= 25°C
0
A
0
–1
–2
–1
0.01
0.1
1
10
100
0
1
3
4
5
6
–1
2
–25
0
50
75 100 125
–50
25
LOAD CURRENT (mA)
COMMON MODE VOLTAGE (V)
TEMPERATURE (°C)
623345 GO6
623345 GO4
623345 GO5
623345fc
10
LT6233/LT6233-10
LT6234/LT6235
Typical perForMance characTerisTics
(LT6233/LT6234/LT6235)
Output Short-Circuit Current
Output Saturation Voltage
vs Power Supply Voltage
vs Load Current (Output High)
Minimum Supply Voltage
10
1
1.0
0.8
80
V
= V /2
S
V
= 5V, 0V
CM
S
T
= –55°C
= 125°C
A
60
40
0.6
T
A
0.4
SINKING
T
= 25°C
20
A
0.2
T
= 125°C
0.1
0
A
0
–0.2
–0.4
–0.6
–0.8
–1.0
T
= –55°C
–20
–40
–60
–80
SOURCING
T
= –55°C
A
A
T
= 125°C
A
0.01
0.001
T
= –55°C
A
T
= 25°C
A
T
= 25°C
1
A
T
= 125°C
T
= 25°C
3.0
A
A
0.5
1
2
1.5
2.5
3
3.5
4 4.5 5
0
0.01
0.1
10
100
2.0
2.5
3.5 4.0 4.5 5.0
1.5
LOAD CURRENT (mA)
TOTAL SUPPLY VOLTAGE (V)
POWER SUPPLY VOLTAGE ( Vꢀ
623345 G07
623345 G08
623345 GO9
Open-Loop Gain
Open-Loop Gain
Open-Loop Gain
2.5
2.0
2.5
2.0
2.5
2.0
V
T
= 5V, 0V
= 25°C
V
T
= 5V
= 25°C
V
T
= 3V, 0V
= 25°C
S
A
S
A
S
A
1.5
1.5
1.5
1.0
1.0
1.0
0.5
0.5
0.5
R
= 1k
R
= 1k
R
= 1k
L
L
L
0
0
0
R
= 100Ω
R
= 100Ω
–0.5
–1.0
–1.5
–2.0
–2.5
L
–0.5
–1.0
–1.5
–2.0
–2.5
R = 100Ω
L
–0.5
–1.0
–1.5
–2.0
–2.5
L
0.5
1
2
2.5
3
3.5
4
4.5
5
–4 –3
–1
0
1
2
3
4
5
0
1.5
–5
–2
0
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
623345 G11
623345 G12
623345 G10
Total Noise vs Total Source
Resistance
Offset Voltage vs Output Current
Warm-Up Drift vs Time
100
10
1
2.0
1.5
40
35
30
25
20
15
10
0
V
V
=
CM
2.5V
= 0V
T
= 25°C
V
=
5V
S
A
S
TOTAL NOISE
f = 100kHz
UNBALANCED
SOURCE
V
=
5V
S
T
= 125°C
A
1.0
RESISTORS
0.5
RESISTOR NOISE
0
V
=
2ꢀ5V
1ꢀ5V
30
S
AMPLIFIER NOISE VOLTAGE
–0.5
–1.0
–1.5
–2.0
V
=
S
T
= –55°C
A
T
= 25°C
A
0.1
–60
–30
0
30
60
90
10
40
50
–90
0
20
10
100
1k
10k
100k
TOTAL SOURCE RESISTANCE (Ω)
OUTPUT CURRENT (mA)
TIME AFTER POWER-UP (s)
623345 G15
623345 G13
623345 G14
623345fc
11
LT6233/LT6233-10
LT6234/LT6235
Typical perForMance characTerisTics
(LT6233/LT6234/LT6235)
Noise Voltage and Unbalanced
Noise Current vs Frequency
0.1Hz to 10Hz Output Voltage
Noise
Gain Bandwidth and Phase Margin
vs Temperature
6
5
4
3
2
1
0
6
5
4
3
2
1
0
70
60
50
40
V
= 2ꢀ5V
V
T
= 2ꢀ5V
S
S
A
= 25°C
= 0V
V
= 5V
S
V
CM
PHASE MARGIN
V
= 3V, 0V
S
100nV
90
80
70
60
50
40
C
= 5pF
L
L
R
= 1k
V
= V /2
CM
S
–100nV
NOISE VOLTAGE
NOISE CURRENT
GAIN BANDWIDTH
V
= 5V
S
V
= 3V, 0V
5
S
5s/DIV
10
100
1k
10k
100k
–55
–25
35
65
95
125
FREQUENCY (Hz)
TEMPERATURE (°C)
623345 G16
623345 G17
623345 G18
Gain Bandwidth and Phase Margin
vs Supply Voltage
Open-Loop Gain vs Frequency
Slew Rate vs Temperature
80
120
100
80
80
70
60
50
40
26
24
C
= 5pF
T
= 25°C
= 5pF
= 1k
A
= –1
G
L
L
A
V
ꢀ
R
= 1k
C
L
R = R = 1k
70
60
50
40
30
20
10
0
V
= V /2
R
L
CM
S
PHASE
V
=
5V ꢀALLꢁIG
S
22
20
18
16
14
12
10
60
V
=
5V RꢁSꢁIG
S
V
= 5V
S
PHASE MARGIN
V
= 3V, 0V
S
40
20
70
60
50
40
30
0
V
= 5V
S
V
= 3V, 0V
V
= 2ꢂ5V ꢀALLꢁIG
–20
–40
–60
–80
S
S
GAIN BANDWIDTH
GAIN
V
= 2ꢂ5V RꢁSꢁIG
S
–10
–20
100k
1M
10M
FREQUENCY (Hz)
100M
1G
0
2
4
6
8
10
12
14
–35 –15
25 45 65 85 105 125
5
TEMPERATURE (°C)
–55
TOTAL SUPPLY VOLTAGE (V)
623345 G19
623345 G20
623345 G21
Common Mode Rejection Ratio
vs Frequency
Output Impedance vs Frequency
Channel Separation vs Frequency
1k
100
10
–40
120
100
80
60
40
20
0
V
= 5V, 0V
A
= 1
S
V
A
S
–50
–60
T
= 25°C
V
= 5V
A
= 10
–70
V
–80
A
= 2
–90
V
–100
–110
–120
–130
–140
A
= 1
V
1
V
V
= 5V, 0V
S
= V /2
CM
S
0.1
100k
1M
10M
100M
10k
100k
1M
10M
100M
1G
100k
1M
10M
100M
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
623345 G24
623345 G23
623345 G22
623345fc
12
LT6233/LT6233-10
LT6234/LT6235
Typical perForMance characTerisTics
(LT6233/LT6234/LT6235)
Power Supply Rejection Ratio
vs Frequency
Series Output Resistance and
Overshoot vs Capacitive Load
Series Output Resistance and
Overshoot vs Capacitive Load
50
120
100
80
60
40
20
0
50
45
40
35
30
25
20
15
10
5
V
T
= 5V, 0V
V
A
= 5V, 0V
= 1
V
A
= 5V, 0V
= 2
S
A
S
V
S
V
= 25°C
= V /2
45
40
35
30
25
20
15
10
5
R
= 10Ω
V
S
CM
S
R
= 10Ω
S
R
= 20Ω
R
= 20Ω
POSITIVE SUPPLY
S
S
R
= 50Ω
= 50Ω
S
L
R
NEGATIVE SUPPLY
R
R
= 50Ω
= 50Ω
S
L
0
0
1k
10k
100k
1M
10M
100M
10
100
CAPACITIVE LOAD (pF)
1000
10
100
CAPACITIVE LOAD (pF)
1000
FREQUENCY (Hz)
623345 G25
623345 G26
623345 G27
Settling Time vs Output Step
(Noninverting)
Settling Time vs Output Step
(Inverting)
Maximum Undistorted Output
Signal vs Frequency
10
9
400
350
300
250
200
150
100
50
400
350
300
250
200
150
100
50
V
=
5V
V
= 5V
= 25°C
= –1
A
= 2
500Ω
S
A
V
S
A
V
V
T
= 25°C
= 1
T
A
A
A = –1
V
500Ω
–
+
–
+
V
IN
8
V
V
OUT
OUT
7
V
500Ω
IN
6
1mV
1mV
5
1mV
1mV
10mV
10mV
10mV
10mV
4
V
=
5V
S
A
3
T
= 25°C
HD2, HD3 < –40dBc
2
–3 –2 –1
1
2
3
4
–3 –2 –1
1
2
3
4
10k
100k
1M
10M
–4
0
–4
0
FREQUENCY (Hz)
OUTPUT STEP (V)
OUTPUT STEP (V)
623345 G30
623345 G28
623345 G29
Distortion vs Frequency
Distortion vs Frequency
Distortion vs Frequency
–40
–50
–60
–70
–80
–90
–100
–40
–50
–60
–70
–80
–90
–100
–30
–40
–50
–60
–70
–80
–90
–100
V
A
V
=
2ꢀ5V
V
A
V
=
5V
V
A
V
=
2ꢀ5V
S
V
S
V
S
V
= 1
= 1
= 2
R
= 1k, 3RD
L
= 2V
= 2V
= 2V
P-P
P-P
P-P
OUT
OUT
OUT
R
R
= 100Ω, 2ND
= 100Ω, 3RD
R = 100Ω, 2ND
L
L
R
= 1k, 3RD
R
R
= 100Ω, 2ND
= 100Ω, 3RD
L
L
R
= 1k, 3RD
R
= 100Ω, 3RD
L
L
L
L
R
= 1k, 2ND
L
R
= 1k, 2ND
R
= 1k, 2ND
L
L
10k
100k
1M
10M
10k
100k
1M
10M
10k
100k
1M
10M
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
623345 G31
623345 G32
623345 G33
623345fc
13
LT6233/LT6233-10
LT6234/LT6235
Typical perForMance characTerisTics
(LT6233/LT6234/LT6235)
Distortion vs Frequency
Large-Signal Response
Small-Signal Response
–30
–40
–50
–60
–70
–80
–90
–100
V
A
V
=
5V
S
V
= 2
= 2V
P-P
OUT
R
= 1k, 3RD
2V
0V
L
R
= 100Ω, 2ND
L
0V
R
= 100Ω, 3RD
L
–2V
R
= 1k, 2ND
L
623345 G35
623345 G36
V
S
A
V
=
= –1
= 1k
2ꢀ5V
200ns/DIV
V
S
A
V
=
2ꢀ5V
200ns/DIV
= 1
R
R
= 1k
L
L
10k
100k
1M
10M
FREQUENCY (Hz)
623345 G34
Large-Signal Response
Output Overdrive Recovery
5V
0V
0V
0V
–5V
623345 G38
623345 G37
V
S
A
V
=
= 3
2ꢀ5V
200ns/DIV
V
A
=
5V
200ns/DIV
S
V
L
= 1
R
= 1k
(LT6233) ENABLE Characteristics
Supply Current
vs ENABLE Pin Voltage
ENABLE Pin Current
vs ENABLE Pin Voltage
ENABLE Pin Response Time
1.4
35
30
25
20
15
10
5
V
A
= 2ꢀ5V
S
V
T
= 125°C
A
T
= –55°C
A
= 1
1.2
T
= 25°C
5V
0V
A
1.0
0.8
0.6
0.4
0.2
0
T
T
= 25°C
A
A
T
= –55°C
A
= 125°C
0.5V
0V
623345 G41
V
V
A
=
2.5V
200µs/DIV
S
= 0.5V
IN
= 1
V
V
= 2.5V
S
0
R
= 1k
–2.0
0
1.0
2.0
–2ꢀ0
–1ꢀ0
0
1ꢀ0
2ꢀ0
–1.0
L
PIN VOLTAGE (V)
PIN VOLTAGE (V)
623345 G39
623345 G40
623345fc
14
LT6233/LT6233-10
LT6234/LT6235
Typical perForMance characTerisTics
(LT6233-10)
Gain Bandwidth and Phase Margin
Series Output Resistor and
Overshoot vs Capacitive Load
70
vs Temperature
Slew Rate vs Temperature
200
180
160
140
120
100
80
450
400
350
300
250
200
A
= 10
A = –10
V
V
A
= 5V, 0V
= 10
V
S
V
R = 1k
ꢀ
G
V
= 5V
S
R = 10Ω
S
60
50
40
30
20
10
0
R
= 100Ω
V
=
5V ꢀALLING
2ꢁ5V RISING
S
GAIN BANDWIDTH
PHASE MARGIN
V
= 5V RISING
S
R
= 20Ω
S
V
= 3V, 0V
S
R
= 50Ω
S
V
=
S
70
60
50
40
60
V
= 5V
V
= 2ꢁ5V ꢀALLING
S
S
40
V
= 3V, 0V
S
20
0
–25
0
50
75 100 125
–35 –15
25 45 65 85 105 125
5
TEMPERATURE (°C)
10
100
1000
10000
–50
25
–55
CAPACITIVE LOAD (pF)
TEMPERATURE (°C)
623345 G44
623345 G42
623345 G43
Open-Loop Gain and Phase
vs Frequency
Gain Bandwidth and Phase Margin
vs Supply Voltage
Gain Bandwidth vs Resistor Load
80
70
60
50
40
30
20
10
0
120
450
375
300
225
400
350
300
250
200
150
100
50
A
V
= 10
= 5pF
= 1k
T
= 25°C
= 10
= 5pF
= 1k
V = 5V
S
A
V
L
PHASE
C
A
C
T = 25°C
A
100
80
L
R
V
R = 1k
F
L
CM
= V /2
R
R = 100Ω
G
S
L
V
= 5V
S
60
GAIN BANDWIDTH
PHASE MARGIN
GAIN
V
= 3V, 0V 40
S
20
0
V
= 3V, 0V
S
100
50
0
–20
V
= 5V
S
–40
–60
–80
–10
–20
0
100k
1M
10M
FREQUENCY (Hz)
100M
1G
2
4
8
10
12
200
400
800
1000
0
6
0
600
TOTAL SUPPLY VOLTAGE (V)
TOTAL RESISTOR LOAD (Ω)
(INCLUDES FEEDBACK R)
623345 G45
623345 G46
623345 G47
Common Mode Rejection Ratio
vs Frequency
Maximum Undistorted Output
vs Frequency
2nd and 3rd Harmonic Distortion
vs Frequency
120
100
80
60
40
20
0
10
9
8
7
6
5
4
3
2
1
0
–30
–40
–50
–60
–70
–80
–90
–100
V
V
= 5V, 0V
S
V
A
V
=
2ꢀ5V
= 10
= 2V
S
V
= V /2
CM
S
R
= 1k, 3RD
P-P
OUT
L
R
= 100Ω, 3RD
L
R
= 100Ω, 2ND
L
R
= 1k, 2ND
L
V
= 5V
= 25°C
= 10
S
A
V
T
A
HD2, HD3 ≤ 40dBc
10k 100k
FREQUENCY (Hz)
10k
100k
1M
10M
100M
1G
1M
10M
10k
100k
1M
10M
FREQUENCY (Hz)
FREQUENCY (Hz)
623345 G49
623345 G50
623345 G48
623345fc
15
LT6233/LT6233-10
LT6234/LT6235
Typical perForMance characTerisTics
(LT6233-10)
2nd and 3rd Harmonic Distortion
vs Frequency
Large-Signal Response
Output-Overload Recovery
–30
–40
–50
–60
–70
–80
–90
–100
V
A
V
=
5V
= 10
= 2V
S
V
P-P
OUT
R
= 1k, 2ND
L
R
= 100Ω, 3RD
L
R
= 100Ω, 2ND
0V
0V
0V
L
R
= 1k, 3RD
L
623345 G52
623345 G53
V
A
=
5V
100ns/DIV
V
A
= 5V, 0V
= 10
100ns/DIV
S
V
F
S
V
F
= 10
R = 900Ω
R = 900Ω
R = 100Ω
G
R
= 100Ω
10k
100k
1M
10M
G
FREQUENCY (Hz)
623345 G51
Input Referred High Frequency
Noise Spectrum
Small-Signal Response
10
2.5V
0
623345 G54
V
A
= 5V, 0V
= 10
100ns/DIV
S
V
F
100kHz
20MHz
623345 G55
2MHz/DIV
R = 900Ω
R
= 100Ω
G
623345fc
16
LT6233/LT6233-10
LT6234/LT6235
applicaTions inForMaTion
Amplifier Characteristics
be limited to 40mA. This implies 25Ω of protection re-
sistance is necessary per volt of overdrive beyond 0.7V.
These input diodes are rugged enough to handle transient
currents due to amplifier slew rate overdrive and clipping
without protection resistors.
Figure 1 is a simplified schematic of the LT6233/LT6234/
LT6235, which has a pair of low noise input transistors
Q1 and Q2. A simple current mirror Q3/Q4 converts the
differential signal to a single-ended output, and these
transistors are degenerated to reduce their contribution
to the overall noise.
The photo of Figure 2 shows the output response to an
input overdrive with the amplifier connected as a voltage
follower. With the input signal low, current source I satu-
1
Capacitor C1 reduces the unity-cross frequency and im-
proves the frequency stability without degrading the gain
rates and the differential drive generator drives Q6 into
–
saturation so the output voltage swings all the way to V .
bandwidth of the amplifier. Capacitor C sets the overall
M
The input can swing positive until transistor Q2 saturates
into current mirror Q3/Q4. When saturation occurs, the
outputtriestophaseinvert, butdiodeD2conductscurrent
from the signal source to the output through the feedback
connection. The output is clamped a diode drop below the
input. In this photo, the input signal generator is limiting
at about 20mA.
amplifier gain bandwidth. The differential drive generator
supplies current to transistors Q5 and Q6 that swing the
output from rail-to-rail.
Input Protection
Thereareback-to-backdiodes,D1andD2acrossthe+and
– inputs of these amplifiers to limit the differential input
voltage to 0.7V. The inputs of the LT6233/LT6234/LT6235
do not have internal resistors in series with the input tran-
sistors. This technique is often used to protect the input
devices from overvoltage that causes excessive current
to flow. The addition of these resistors would significantly
degrade the low noise voltage of these amplifiers. For
instance, a 100Ω resistor in series with each input would
generate 1.8nV/√Hz of noise, and the total amplifier noise
voltage would rise from 1.9nV/√Hz to 2.6nV/√Hz. Once
the input differential voltage exceeds 0.7V, steady-state
current conducted through the protection diodes should
2.5V
0V
–2.5V
623345 F02
500µs/DIV
Figure 2. VS = 2.5V, AV = 1 with Large Overdrive
+V
+V
Q5
C
M
DESD5
Q3
Q4
V
OUT
–V
+V
DESD6
C1
DESD2
DIFFERENTIAL
DESD1
DRIVE GENERATOR
–V
D2
–V
+V
–V
Q1
Q2
IN
Q6
D1
+V
+V
IN
BIAS
ENABLE
I
1
DESD3
DESD4
–V
–V
623345 F01
Figure 1. Simplified Schematic
623345fc
17
LT6233/LT6233-10
LT6234/LT6235
applicaTions inForMaTion
With the amplifier connected in a gain of A ≥ 2, the output
The product of e • √I
is an interesting way to
SUPPLY
V
N
can invert with very heavy overdrive. To avoid this inver-
sion, limit the input overdrive to 0.5V beyond the power
supply rails.
gauge low noise amplifiers. Most low noise amplifiers
with low e have high I current. In applications that
N
SUPPLY
require low noise voltage with the lowest possible supply
current, this product can prove to be enlightening. The
ESD
LT6233/LT6234/LT6235 have an e • √I
product of
SUPPLY
N
only 2.1 per amplifier, yet it is common to see amplifiers
The LT6233/LT6234/LT6235 have reverse-biased ESD
protection diodes on all inputs and outputs as shown in
Figure 1. If these pins are forced beyond either supply,
unlimited current will flow through these diodes. If the
current is transient and limited to one hundred milliamps
or less, no damage to the device will occur.
with similar noise specifications to have e • √I
high as 13.5.
as
N
SUPPLY
For a complete discussion of amplifier noise, see the
LT1028 data sheet.
Enable Pin
Noise
The LT6233 and LT6233-10 include an ENABLE pin that
shuts down the amplifier to 10µA maximum supply cur-
rent. The ENABLE pin must be driven low to operate the
amplifier with normal supply current. The ENABLE pin
The noise voltage of the LT6233/LT6234/LT6235 is
equivalent to that of a 225Ω resistor, and for the lowest
possible noise it is desirable to keep the source and feed-
back resistance at or below this value, i.e., R + R ||R
+
must be driven high to within 0.35V of V to shut down
S
G
FB
≤ 225Ω. With R + R ||R = 225Ω the total noise of the
the supply current. This can be accomplished with simple
gate logic; however care must be taken if the logic and the
LT6233 operate from different supplies. If this is the case,
then open-drain logic can be used with a pull-up resis-
tor to ensure that the amplifier remains off. See Typical
Performance Characteristics.
S
G
FB
amplifier is:
2
2
e = √(1.9nV) + (1.9nV) = 2.69nV/√Hz
N
Below this resistance value, the amplifier dominates the
noise, but in the region between 225Ω and about 30k,
the noise is dominated by the resistor thermal noise. As
the total resistance is further increased beyond 30k, the
amplifier noise current multiplied by the total resistance
eventually dominates the noise.
The output leakage current when disabled is very low;
however, current can flow into the input protection diodes
D1 and D2 if the output voltage exceeds the input voltage
by a diode drop.
623345fc
18
LT6233/LT6233-10
LT6234/LT6235
Typical applicaTions
Single Supply, Low Noise, Low Power, Bandpass Filter with Gain = 10
Frequency Response Plot of
Bandpass Filter
C2
47pF
R1
732Ω
23
1
f
0
=
= 1MHz
+
2πRC
V
C = √C1,C2 R = R1 = R2
C1
1000pF
732Ω
0.1µF
R3
R2
f
f
=
MHz, MAXIMUM f = 1MHz
0
0
(
)
R
f
10k
732Ω
0
2.5
=
V
–
+
–3dB
IN
3
LT6233
EN
V
OUT
A
E
I
= 20dB at f
V
0
= 6µV
INPUT REFERRED
+
N
RMS
= 1.5mA FOR V = 5V
S
R4
10k
C3
0.1µF
623345 F03
–7
100k
1M
10M
FREQUENCY (Hz)
623345 F04
Low Power, Low Noise, Single Supply, Instrumentation Amplifier with Gain = 100
R1
30.9Ω
R2
511Ω
+
C2
2200pF
V
C8
68pF
–
U1
LT6233-10
+
R15
88.7Ω
R10
511Ω
V
V
+
IN1
EN
C1
1µF
R13
2k
–
+
R6
511Ω
U3
V
OUT
LT6233
EN
R3
30.9Ω
R4
511Ω
R16
88.7Ω
C9
68pF
R12
511Ω
+
V
R14
2k
C4
10µF
R5
511Ω
–
V
= 100 (V – V )
IN1
R1 = R3
U2
OUT
IN2
LT6233-10
R2 = R4
R2
R1
R10
GAIN =
+ 1
R10 = R12
R15 = R16
(
) (R15)
V
+
IN2
EN
INPUT RESISTANCE = R5 = R6
= 310Hz TO 2.5MHz
C3
1µF
f
–3dB
E
N
= 10µV
INPUT REFERRED
RMS
I
= 4.7mA FOR V = 5V, 0V
S
S
623345 F05
623345fc
19
LT6233/LT6233-10
LT6234/LT6235
package DescripTion
S6 Package
6-Lead Plastic TSOT-23
(Reference LTC DWG # 05-08-1636)
2.90 BSC
(NOTE 4)
0.62
MAX
0.95
REF
1.22 REF
1.4 MIN
1.50 – 1.75
2.80 BSC
3.85 MAX 2.62 REF
(NOTE 4)
PIN ONE ID
RECOMMENDED SOLDER PAD LAYOUT
PER IPC CALCULATOR
0.30 – 0.45
6 PLCS (NOTE 3)
0.95 BSC
0.80 – 0.90
0.20 BSC
DATUM ‘A’
0.01 – 0.10
1.00 MAX
0.30 – 0.50 REF
1.90 BSC
0.09 – 0.20
(NOTE 3)
S6 TSOT-23 0302
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
3. DIMENSIONS ARE INCLUSIVE OF PLATING
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
5. MOLD FLASH SHALL NOT EXCEED 0.254mm
6. JEDEC PACKAGE REFERENCE IS MO-193
623345fc
20
LT6233/LT6233-10
LT6234/LT6235
package DescripTion
DD Package
8-Lead Plastic DFN (3mm × 3mm)
(Reference LTC DWG # 05-08-1698 Rev C)
0.70 ±0.05
3.5 ±0.05
2.10 ±0.05 (2 SIDES)
1.65 ±0.05
PACKAGE
OUTLINE
0.25 ± 0.05
0.50
BSC
2.38 ±0.05
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
R = 0.125
0.40 ± 0.10
TYP
5
8
3.00 ±0.10
(4 SIDES)
1.65 ± 0.10
(2 SIDES)
PIN 1
TOP MARK
(NOTE 6)
(DD8) DFN 0509 REV C
4
1
0.25 ± 0.05
0.75 ±0.05
0.200 REF
0.50 BSC
2.38 ±0.10
BOTTOM VIEW—EXPOSED PAD
0.00 – 0.05
NOTE:
1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-1)
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
ON TOP AND BOTTOM OF PACKAGE
623345fc
21
LT6233/LT6233-10
LT6234/LT6235
package DescripTion
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
.189 – .197
(4.801 – 5.004)
.045 ±.005
NOTE 3
.050 BSC
7
5
8
6
.245
MIN
.160 ±.005
.150 – .157
(3.810 – 3.988)
NOTE 3
.228 – .244
(5.791 – 6.197)
.030 ±.005
TYP
1
3
4
2
RECOMMENDED SOLDER PAD LAYOUT
.010 – .020
(0.254 – 0.508)
× 45°
.053 – .069
(1.346 – 1.752)
.004 – .010
(0.101 – 0.254)
.008 – .010
(0.203 – 0.254)
0°– 8° TYP
.016 – .050
(0.406 – 1.270)
.050
(1.270)
BSC
.014 – .019
(0.355 – 0.483)
TYP
NOTE:
INCHES
1. DIMENSIONS IN
(MILLIMETERS)
2. DRAWING NOT TO SCALE
3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
SO8 0303
GN Package
16-Lead Plastic SSOP (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1641)
.189 – .196*
(4.801 – 4.978)
.045 ±.005
.009
(0.229)
REF
16 15 14 13 12 11 10 9
.254 MIN
.150 – .165
.229 – .244
.150 – .157**
(5.817 – 6.198)
(3.810 – 3.988)
.0165 ±.0015
.0250 BSC
RECOMMENDED SOLDER PAD LAYOUT
1
2
3
4
5
6
7
8
.015 ± .004
(0.38 ± 0.10)
× 45°
.0532 – .0688
(1.35 – 1.75)
.004 – .0098
(0.102 – 0.249)
.007 – .0098
(0.178 – 0.249)
0° – 8° TYP
.016 – .050
(0.406 – 1.270)
.0250
(0.635)
BSC
.008 – .012
GN16 (SSOP) 0204
(0.203 – 0.305)
TYP
NOTE:
1. CONTROLLING DIMENSION: INCHES
INCHES
2. DIMENSIONS ARE IN
(MILLIMETERS)
3. DRAWING NOT TO SCALE
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
623345fc
22
LT6233/LT6233-10
LT6234/LT6235
revision hisTory (Revision history begins at Rev C)
REV
DATE
DESCRIPTION
PAGE NUMBER
C
1/11
Revised y-axis lable on curve G40 in Typical Performance Characteristics
Updated ENABLE Pin section in Applications Information
14
18
623345fc
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
23
LT6233/LT6233-10
LT6234/LT6235
Typical applicaTions
The LT6233 is applied as a transimpedance amplifier with
an I-to-V conversion gain of 10kΩ set by R1. The LT6233
is ideally suited to this application because of its low in-
put offset voltage and current, and its low noise. This is
because the 10k resistor has an inherent thermal noise of
13nV/√Hz or 1.3pA/√Hz at room temperature, while the
LT6233 contributes only 2nV and 0.8pA/√Hz. So, with
respect to both voltage and current noises, the LT6233 is
actually quieter than the gain resistor.
the photodiode, it induces a current I which flows into
PD
the amplifier circuit. The amplifier output falls negative
to maintain balance at its inputs. The transfer function
is therefore V
= –I • 10k. C1 ensures stability and
PD
OUT
goodsettlingcharacteristics. Outputoffsetwasmeasured
at better than 500µV, so low in part because R2 serves to
cancel the DC effects of bias current. Output noise was
measured at below 1mV
on a 20MHz measurement
P-P
bandwidth,withC2shuntingR2’sthermalnoise. Asshown
inthescopephoto,therisetimeis45ns,indicatingasignal
bandwidth of 7.8MHz.
Thecircuitusesanavalanchephotodiodewiththecathode
biased to approximately 200V. When light is incident on
Low Power Avalanche Photodiode Transimpedance Amplifier
IS = 1.2mA
Photodiode Amplifier Time Domain Response
≈ 200V BIAS
C1
2.7pF
ADVANCED PHOTONIX
012-70-62-541
WWW.ADVANCEDPHOTONIX.COM
R1
10k
5V
–
R2
10k
LT6233
+
623345 TA02b
–5V
100ns/DIV
ENABLE
623345 TA02a
C2
0.1µF
OUTPUT OFFSET = 500µV TYPICAL
BANDWIDTH = 7.8MHz
OUTPUT NOISE = 1mV (20MHz MEASUREMENT BW)
P-P
relaTeD parTs
PART NUMBER
LT1028
DESCRIPTION
COMMENTS
Single, Ultralow Noise 50MHz Op Amp
Single, Low Noise Rail-to-Rail Amplifier
Single/Dual, Low Noise 325MHz Rail-to-Rail Amplifier
Single/Dual, Low Noise 165MHz
0.85nV/√Hz
LT1677
3V Operation, 2.5mA, 4.5nV/√Hz, 60µV Max V
OS
LT1806/LT1807
LT6200/LT6201
2.5V Operation, 550µV Max V , 3.5nV/√Hz
OS
0.95nV√Hz, Rail-to-Rail Input and Output
LT6202/LT6203/LT6204 Single/Dual/Quad, Low Noise, Rail-to-Rail Amplifier
1.9nV/√Hz, 3mA Max, 100MHz Gain Bandwidth
623345fc
LT 0111 REV C • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
24
●
●
LINEAR TECHNOLOGY CORPORATION 2003
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
相关型号：
LT6234IDD#TRPBF
LT6234 - 60MHz, Rail-to-Rail Output, 1.9nV/rtHz, 1.2mA Op Amp Family; Package: DFN; Pins: 8; Temperature Range: -40°C to 85°C
Linear
LT6234IS8#PBF
LT6234 - 60MHz, Rail-to-Rail Output, 1.9nV/rtHz, 1.2mA Op Amp Family; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C
Linear
LT6234IS8#TR
LT6234 - 60MHz, Rail-to-Rail Output, 1.9nV/rtHz, 1.2mA Op Amp Family; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C
Linear
LT6235CGN#PBF
LT6235 - 60MHz, Rail-to-Rail Output, 1.9nV/rtHz, 1.2mA Op Amp Family; Package: SSOP; Pins: 16; Temperature Range: 0°C to 70°C
Linear
LT6235CGN#TR
LT6235 - 60MHz, Rail-to-Rail Output, 1.9nV/rtHz, 1.2mA Op Amp Family; Package: SSOP; Pins: 16; Temperature Range: 0°C to 70°C
Linear
LT6235CGN#TRPBF
LT6235 - 60MHz, Rail-to-Rail Output, 1.9nV/rtHz, 1.2mA Op Amp Family; Package: SSOP; Pins: 16; Temperature Range: 0°C to 70°C
Linear
©2020 ICPDF网 联系我们和版权申明