4
LT1192
Optional Offset Nulling Circuit
LT1192 • TA03
+
–
5V
7
6
LT1192
3
2
–5V
4
1
8
INPUT OFFSET VOLTAGE CAN BE ADJUSTED OVER A ±20mV
RANGE WITH A 1k TO 10k POTENTIOMETER
ΩΩ
The ● denotes the specifications which apply over the full operating
temperature range of 0°C ≤ T
A
≤ 70°C. V
S
= ±5V, Pin 5 open circuit unless otherwise noted.
LT1191C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage N8 Package ● 0.4 3 mV
SO-8 Package 4 mV
∆V
OS
/∆T Input V
OS
Drift ● 2 µV/°C
I
OS
Input Offset Current ● 0.2 1.7 µA
I
B
Input Bias Current ● ±0.5 ±2.5 µA
CMRR Common Mode Rejection Ratio V
CM
= – 2.5V to 3.5V ● 68 85 dB
PSRR Power Supply Rejection Ratio V
S
= ±2.375V to ±5V ● 70 90 dB
A
VOL
Large-Signal Voltage Gain R
L
= 1k, V
O
= ±3V ● 90 140 V/mV
R
L
= 100Ω, V
O
= ±3V ● 10 30 V/mV
V
OUT
Output Voltage Swing R
L
= 1k ● ±3.7 ±3.9 V
I
S
Supply Current ● 32 38 mA
Shutdown Supply Current Pin 5 at V
–
(Note 8) ● 1.4 2.1 mA
I
SHDN
Shutdown Pin Current Pin 5 at V
–
● 20 µA
Note 1: Absolute Maximum Ratings are those values beyond which the
life of the device may be impaired.
Note 2: A heat sink is required to keep the junction temperature below
absolute maximum when the output is shorted.
Note 3: Exceeding the input common mode range may cause the output
to invert.
Note 4: Slew rate is measured between ±1V on the output, with a ±0.3V
input step.
Note 5: Full-power bandwidth is calculated from the slew rate
measurement:
FPBW = SR/2πV
P
.
Note 6: Settling time measurement techniques are shown in “Take the
Guesswork Out of Settling Time Measurements,” EDN, September 19,
1985. A
V
= –5, R
L
= 1k.
Note 7: NTSC (3.58MHz). For R
L
= 1k, Diff A
V
= 0.1%, Diff Ph = 0.01°.
Diff A
V
and Diff Ph can be reduced for A
V
< 10.
Note 8: See Applications section for shutdown at elevated temperatures.
Do not operate the shutdown above T
J
> 125°C.
Note 9: AC parameters are 100% tested on the ceramic and plastic DIP
packaged parts (J and N suffix) and are sample tested on every lot of the
SO packaged parts (S suffix).
ELECTRICAL CHARACTERISTICS
