3
LT1122
E
LECTR
IC
AL C CHARA TERIST
ICS
LT1122CM/DM
LT1122AM/BM LT1122CC/DC
LT1122AC/BC LT1122CS/DS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
S
= ± 15V, T
A
= 25°C, V
CM
= 0V unless otherwise noted.
LT1122CC/DC
LT1122AC/BC LT1122CS/DS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage • 350 1400 400 2000 µV
Average Temperature Coefficient • 518 6 25 µV/°C
of Input Offset Voltage
I
OS
Input Offset Current • 12 150 15 200 pA
I
B
Input Bias Current • 80 600 90 800 pA
A
VOL
Large Signal Voltage Gain V
OUT
= ± 10V, R
L
≥ 2kΩ • 120 380 100 340 V/mV
CMRR Common Mode Rejection Ratio V
CM
= ± 10V • 82 98 78 96 dB
PSRR Power Supply Rejection Ratio V
S
= ± 10V to ± 17V • 84 101 80 99 dB
Input Voltage Range • ± 10 ± 10.8 ± 10 ± 10.8 V
V
OUT
Output Voltage Swing R
L
= 2kΩ • ± 11.5 ± 12.4 ± 11.5 ± 12.4 V
S
R
Slew Rate A
V
= – 1 • 50 70 40 65 V/µs
V
S
= ± 15V, V
CM
= 0V, 0°C ≤ T
A
≤ 70°C, unless otherwise noted. (Note 1)
LT1122AM/BM LT1122CM/DM
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage • 650 2400 800 3400 µV
Average Temperature Coefficient • 618 725 µV/°C
of Input Offset Voltage
I
OS
Input Offset Current • 0.5 6 0.6 9 nA
I
B
Input Bias Current • 625 735 nA
A
VOL
Large Signal Voltage Gain V
OUT
= ± 10V, R
L
≥ 2kΩ • 70 230 60 200 V/mV
CMRR Common Mode Rejection Ratio V
CM
= ± 10V • 80 97 76 94 dB
PSRR Power Supply Rejection Ratio V
S
= ± 10V to ± 17V • 83 100 78 98 dB
Input Voltage Range • ± 10 ± 10.5 ± 10 ± 10.5 V
V
OUT
Output Voltage Swing R
L
= 2kΩ • ± 11.3 ± 12.1 ± 11.3 ± 12.1 V
S
R
Slew Rate A
V
= – 1 • 45 60 35 55 V/µs
V
S
= ± 15V, V
CM
= 0V, – 55°C ≤ T
A
≤ 125°C, unless otherwise noted. (Note 1)
The
•
denotes the specifications which apply over the full operating
temperature range.
Note 1: The LT1122 is measured in an automated tester in less than one
second after application of power. Depending on the package used, power
dissipation, heat sinking, and air flow conditions, the fully warmed up chip
temperature can be 10°C to 50°C higher than the ambient temperature.
Note 2: Settling time is 100% tested for A and C grades using the settling
time test circuit shown. This test is not included in quality assurance
sample testing.
Note 3: Input voltage range functionality is assured by testing offset
voltage at the input voltage range limits to a maximum of 4mV (A, B
grades), to 5.7mV (C, D grades).
Note 4: Minimum supply voltage is tested by measuring offset voltage to
7mV maximum at ± 5V supplies.
Note 5: The LT1122 is not tested and not quality-assurance-sampled at
–40°C and at 85°C. These specifications are guaranteed by design,
correlation and/or inference from – 55°C, 0°C, 25°C, 70°C and/or 125°C
tests.
V
OUT
Output Voltage Swing R
L
= 2kΩ±12 ± 12.5 ± 12 ± 12.5 V
R
L
= 600Ω±11.5 ± 12 ± 11.5 ± 12 V
I
S
Supply Current 7.5 10 7.8 11 mA
Minimum Supply voltage (Note 4) ± 5 ± 5V
Offset Adjustment Range R
POT
≥ 10k, Wiper to V
+
± 4 ± 10 ± 4 ± 10 mV
