Datasheet

4
LT1122
V
S
= ± 15V, V
CM
= 0V, – 40°C ≤ T
A
≤ 85°C, unless otherwise noted. (Note 5)
Settling Time Test Fixture
E
LECTR
IC
AL C CHARA TERIST
ICS
LT1122CC/DC
LT1122AC/BC LT1122CS/DS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage • 450 1900 500 2700 µV
Average Temperature Coefficient • 620 728 µV/°C
of Input Offset Voltage
I
OS
Input Offset Current • 30 600 40 900 pA
I
B
Input Bias Current • 230 2000 260 2700 pA
A
VOL
Large Signal Voltage Gain V
OUT
= ± 10V, R
L
≥ 2kΩ • 95 340 80 300 V/mV
CMRR Common Mode Rejection Ratio V
CM
= ± 10V • 80 98 76 96 dB
PSRR Power Supply Rejection Ratio V
S
= ± 10V to ± 17V • 83 100 78 98 dB
Input Voltage Range • ± 10 ± 10.6 ± 10 ± 10.6 V
V
OUT
Output Voltage Swing R
L
= 2kΩ • ± 11.3 ± 12.2 ± 11.3 ± 12.2 V
S
R
Slew Rate A
V
= – 1 • 45 65 35 60 V/µs
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
+15V
1 F TANTµ0.1 Fµ
1 F TANTµ0.1 Fµ
TYPICAL SUPPLY 
BYPASSING FOR
EACH AMP/BUFFER
–10V
(REGULATED)
1
2
TTL
IN
4
5
74LS00
GROUND ALL 
OTHER INPUTS
+10V
(REGULATED)
6
3
SETTLING
TIME OUTPUT
(20 TIMES SUM
NODE OUTPUT)
1k
NO CONNECTION ON PINS
10, 11, 12, 14, AND 15
1N5712
+15V
–15V
1.5k
LT1223
51
–
+
3
2
4
7
6
8
1
7
2
5
4
51
1N5712
SUMMING
NODE
OUTPUT
–15V
+15V
*THIS RESISTOR CAN BE ADJUSTED TO
NULL OUT ALL OFFSETS AT THE SETTLING
TIME OUTPUT. THE AUTOMATED TESTER
USES A SEPARATE AUTOZERO CIRCUIT.
–15V
(MEASURE INPUT
PULSE HERE)
V
IN
5.1k
1%
4
–15V
3
2
7
6
LT1122
+
–
2k
1%
+15V
2k
1%
DEVICE UNDER TEST
5pF
+15V
7
1
5
2
8
51
51
HA5002
79
5.1k*
1%
HA5002
4
LTC201A
LT1122•TA02
+
+
–15V