Datasheet
2
LT1122
Supply Voltage .................................................... ± 20V
Differential Input Voltage ...................................... ± 40V
Input Voltage ........................................................ ± 20V
Output Short Circuit Duration .......................... Indefinite
Lead Temperature (Soldering, 10 sec.).................300°C
Operating Temperature Range
LT1122AM/BM/CM/DM .................... – 55°C to 125°C
LT1122AC/BC/CC/DC/CS/DS .............. – 40°C to 85°C
Storage Temperature Range
All Devices....................................... – 65°C to 150°C
WU
U
PACKAGE
/
O
RDER I FOR ATIO
LT1122AMJ8 LT1122CCJ8
LT1122BMJ8 LT1122DCJ8
LT1122CMJ8 LT1122ACN8
LT1122DMJ8 LT1122BCN8
LT1122ACJ8 LT1122CCN8
LT1122BCJ8 LT1122DCN8
ORDER PART
NUMBER
ORDER PART
NUMBER
LT1122CS8
LT1122DS8
PART MARKING
1122C
1122D
A
U
G
W
A
W
U
W
ARB
S
O
LU
T
EXI T
I
S
8
7
6
54
3
2
1
V
TRIM
–IN
+IN
V
V TRIM
OUT
+
V
SPEED BOOST/
OVERCOMP
TOP VIEW
N8 PACKAGE
8-LEAD PLASTIC DIP
–
OS
OS
LT1122
J8 PACKAGE
8-LEAD HERMETIC DIP
T
JMAX
= 150°C, θ
JA
= 130°C/W (N8)
T
JMAX
= 175°C, θ
JA
= 100°C/W (J8)
8
7
6
54
3
2
1
–IN
V
TRIM
+IN
–
V TRIM
OUT
OS
V
SPEED BOOST/
OVERCOMP
TOP VIEW
S8 PACKAGE
8-LEAD PLASTIC SOIC
+
OS
V
LT1122
T
JMAX
= 150°C, θ
JA
= 190°C/W
Consult factory for Industrial grade parts.
E
LECTR
IC
AL C CHARA TERIST
ICS
V
S
= ± 15V, T
A
= 25°C, V
CM
= 0V unless otherwise noted. (Note 1)
LT1122CM/DM
LT1122AM/BM LT1122CC/DC
LT1122AC/BC LT1122CS/DS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage 120 600 130 900 µV
I
OS
Input Offset Current 4 40 5 50 pA
I
B
Input Bias Current 10 75 12 100 pA
Input Resistance
Differential 10
12
10
12
Ω
Common Mode V
CM
= – 10V to + 8V 10
12
10
12
Ω
V
CM
= + 8V to + 11V 10
11
10
11
Ω
Input Capacitance 44pF
S
R
Slew Rate A
V
= – 1 60 80 50 75 V/µs
Settling Time (Note 2) + 10V to 0V, – 10V to 0V
100% Tested: A and C Grades
to 1mV at Sum Node 340 540 350 590 ns
B and D Grades to 1mV at Sum Node 350 360 ns
All Grades to 0.5mV at Sum Node 450 470 ns
GBW Gain Bandwidth Product 14 13 MHz
Power Bandwidth V
OUT
= 20Vp-p 1.2 1.1 MHz
A
VOL
Large Signal Voltage Gain V
OUT
= ± 10V, R
L
= 2kΩ 180 500 150 450 V/mV
V
OUT
= ± 10V, R
L
= 600Ω 130 250 110 220 V/mV
CMRR Common Mode Rejection Ratio V
CM
= ± 10V 83 99 80 98 dB
Input Voltage Range (Note 3) ± 10.5 ± 11 ± 10.5 ± 11 V
PSRR Power Supply Rejection Ratio V
S
= ± 10V to ± 18V 86 103 82 101 dB
Input Noise Voltage 0.1Hz to 10Hz 3.0 3.3 µV
P-P
Input Noise Voltage Density f
O
= 100Hz 25 27 nV/√Hz
f
O
= 10kHz 14 15 nV/√Hz
Input Noise Current Density f
O
= 100Hz, f
O
= 10kHz 2 2 fA/√Hz