LT1126ACN8#PBF

4
LT1126/LT1127
11267fa
The denotes the specifications which apply over the full operating temperature range, otherwise specifications are at V
S
= ±15V,
40°C T
A
85°C, unless otherwise noted. (Note 10)
LT1126AC LT1126C
LT1127AC LT1127C
SYMBOL PARAMETER CONDITIONS (Note 2) MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage LT1126 35 120 45 170 µV
LT1127 40 140 50 210 µV
V
OS
/T Average Input Offset Voltage Drift (Note 5) 0.3 1.0 0.4 1.5 µV/°C
I
OS
Input Offset Current LT1126 625 735 nA
LT1127 735 845 nA
I
B
Input Bias Current ± 8 ± 35 ± 9 ± 45 nA
V
CM
Input Voltage Range ± 11.5 ± 12.4 ± 11.5 ± 12.4 V
CMRR Common Mode Rejection Ratio V
CM
= ±11.5V 109 125 102 122 dB
PSRR Power Supply Rejection Ratio V
S
= ±4V to ±18V 112 125 107 122 dB
A
VOL
Large Signal Voltage Gain R
L
10k, V
O
= ±10V 4.0 15.0 2.5 14.0 V/µV
R
L
2k, V
O
= ±10V 1.5 3.5 1.0 2.5 V/µV
V
OUT
Maximum Output Voltage Swing R
L
2k ± 12.5 ± 13.7 ± 12.0 ± 13.7 V
SR Slew Rate R
L
2k (Notes 3, 7) 7.5 10.5 7.3 10.5 V/µs
I
S
Supply Current Per Amplifier 2.7 3.3 2.7 3.3 mA
LT1126AC LT1126C
LT1127AC LT1127C
SYMBOL PARAMETER CONDITIONS (Note 2) MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage LT1126 40 140 50 200 µV
LT1127 45 160 55 240 µV
V
OS
/T Average Input Offset Voltage Drift (Note 5) 0.3 1.0 0.4 1.5 µV/°C
I
OS
Input Offset Current LT1126 15 40 17 55 nA
LT1127 15 50 17 65 nA
I
B
Input Bias Current ± 15 ± 50 ± 17 ± 65 nA
V
CM
Input Voltage Range ± 11.4 ± 12.2 ± 11.4 ± 12.2 V
CMRR Common Mode Rejection Ratio V
CM
= ±11.4V 107 124 101 121 dB
PSRR Power Supply Rejection Ratio V
S
= ± 4V to ±18V 111 124 106 121 dB
A
VOL
Large Signal Voltage Gain R
L
10k, V
O
= ±10V 3.5 12.0 2.2 12.0 V/µV
R
L
2k, V
O
= ±10V 1.2 3.2 0.8 2.3 V/µV
V
OUT
Maximum Output Voltage Swing R
L
2k ± 12.5 ± 13.6 ± 12.0 ± 13.6 V
SR Slew Rate R
L
2k (Note 7) 7.3 10.2 7.1 10.2 V/µs
I
S
Supply Current Per Amplifier 2.8 3.4 2.8 3.4 mA
ELECTRICAL CHARACTERISTICS
The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at V
S
= ±15V, 0°C T
A
70°C, unless otherwise noted.
Note 7: Slew rate is measured in A
V
= –10; input signal is ±1V, output
measured at ±5V.
Note 8: 0.1Hz to 10Hz noise can be inferred from the 10Hz noise voltage
density test. See the test circuit and frequency response curve for 0.1Hz to
10Hz tester in the Applications Information section of the LT1007 or
LT1028 datasheets.
Note 9: This parameter is guaranteed but not tested.
Note 10: The LT1126/LT1127 are designed, characterized and expected to
meet these extended temperature limits, but are not tested at –40°C and at
85°C. Guaranteed I grade parts are available. Consult factory.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Typical parameters are defined as the 60% yield of parameter
distributions of individual amplifiers; i.e., out of 100 LT1127s (or 100
LT1126s) typically 240 op amps (or 120) will be better than the indicated
specification.
Note 3: This parameter is 100% tested for each individual amplifier.
Note 4: This parameter is sample tested only.
Note 5: This parameter is not 100% tested.
Note 6: The inputs are protected by back-to-back diodes. Current limiting
resistors are not used in order to achieve low noise. If differential input
voltage exceeds ±1.4V, the input current should be limited to 25mA.
LT1126/LT1127
11267fa
5
SUPPLY VOLTAGE (V)
0
0
SUPPLY CURRENT PER AMPLIFIER (mA)
1
2
3
5101520
1126-7 G06
± ± ± ±
25°C
125°C
–55°C
FREQUENCY (Hz)
80
COMMON MODE REJECTION RATIO (dB)
100
120
140
160
1k 100k 1M 10M
1126-7 G05
10k
60
40
20
0
T
A
= 25°C
V
S
= ±15V
V
CM
= ±10V
FREQUENCY (Hz)
VOLTAGE GAIN (dB)
40
100
120
1126-7 G04
10.01 100 10k 1M 100M
–20
0
20
60
140
160
180
80
V
S
= ±15V
T
A
= 25°C
A = –10, V = 15V
VCL S
±
1126-7 G03
+10V
0V
–10V
1126-7 G02
–50mV
A = –10, V = 15V OR 5V
C = 15pF
VCL S
± ±
L
0mV
50mV
FREQUENCY (MHz)
0.1
–10
VOLTAGE GAIN (dB)
10
30
40
50
1.0 10 100
1126-7 G01
0
20
180
140
100
80
60
160
120
PHASE SHIFT (DEGREES)
V = 15V
T = 25°C
C = 10pF
S
A
L
±
GAIN
Ø
CCHARA TERIST
ICS
UW
AT
Y
P
I
CA
LPER
F
O
R
C
E
*See LT1115 data sheet for definition of CCIF testing
Gain, Phase Shift vs Frequency Small-Signal Transient Response Large-Signal Transient Response
Common Mode Rejection Ratio vs
Voltage Gain vs Frequency Frequency Supply Current vs Supply Voltage
The typical behavior of many LT1126/LT1127 parameters
is identical to the LT1124/LT1125. Please refer to the
LT1124/LT1125 data sheet for the following performance
characteristics:
0.1Hz to 10Hz Voltage Noise
0.01Hz to 1Hz Voltage Noise
Current Noise vs Frequency
Input Bias or Offset Current vs Temperature
Output Short Circuit Current vs Time
Input Bias Current Over the Common Mode Range
Voltage Gain vs Temperature
Input Offset Voltage Drift Distribution
Offset Voltage Drift with Temperature of Representative
Units
Output Voltage Swing vs Load Current
Common Mode Limit vs Temperature
Channel Separation vs Frequency
Warm-Up Drift
Power Supply Rejection Ratio vs Frequency
6
LT1126/LT1127
11267fa
LT1126AM/AC LT1126M/C
LT1127AM/AC LT1127M/C
PARAMETER 50% YIELD 98% YIELD 50% YIELD 98% YIELD UNITS
V
OS
Match, V
OS
LT1126 20 110 30 130 µV
LT1127 30 150 50 180 µV
Temperature Coefficient Match 0.35 1.0 0.5 1.5 µV/°C
Average Non-Inverting I
B
618725 nA
Match of Non-Inverting I
B
722830 nA
CMRR Match 126 115 123 112 dB
PSRR Match 127 118 127 114 dB
APPLICATIO S I FOR ATIO
WUU
U
FREQUENCY (Hz)
INTERMODULATION DISTORTION (IMD) (%)
3k 10k 20k
1126-7 G09
Z
L
= 2k/15pF
f (IM) = 1kHz
f
O
= 13.5kHz
V
O
= 20Vp-p
A
V
= –10
MEASUREMENT BANDWITH
= 10Hz TO 80kHz
LT1126
0.010
0.1
0.001
0.0001
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION + NOISE (%)
0.010
0.1
20 1k 10k 20k
1126-7 G08
100
0.001
0.0001
Z
L
= 2k/15pF
V
O
= 20Vp-p
A
V
= +10, +100
MEASUREMENT BANDWITH
= 10Hz TO 80kHz
A
V
= +10
A
V
= +100
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION + NOISE (%)
0.010
0.1
20 1k 10k 20k
1126-7 G07
100
0.001
0.0001
Z
L
= 2k/15pF
V
O
= 20Vp-p
A
V
= –10, –100
MEASUREMENT BANDWITH
= 10Hz TO 80kHz
A
V
= –10
A
V
= –100
Total Harmonic Distortion Total Harmonic Distortion
and Noise vs Frequency for and Noise vs Frequency for Intermodulation Distortion
Inverting Gain Non-Inverting Gain (CCIF Method)* vs Frequency
CCHARA TERIST
ICS
UW
AT
Y
P
I
CA
LPER
F
O
R
C
E
*See LT1115 data sheet for definition of CCIF testing
Matching Specifications
In many applications the performance of a system de-
pends on the matching between two op amps, rather than
the individual characteristics of the two devices. The three
op amp instrumentation amplifier configuration shown in
this data sheet is an example. Matching characteristics are
not 100% tested on the LT1126/LT1127.
Expected Match
Some specifications are guaranteed by definition. For
example, 70µV maximum offset voltage implies that mis-
match cannot be more than 140µV. 112dB (= 2.5µV/V)
CMRR means that worst case CMRR match is 106dB
(5µV/V). However, the following table can be used to
estimate the expected matching performance between the
two sides of the LT1126, and between amplifiers A and D,
and between amplifiers B and C of the LT1127.

LT1126ACN8#PBF

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
High Speed Operational Amplifiers 2x Decomp L N, Hi Speed Prec Op Amps
Lifecycle:
New from this manufacturer.
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