Datasheet
2
LT1492/LT1493
ABSOLUTE MAXIMUM RATINGS
W
WW
U
Total Supply Voltage (V
+
to V
–
) .............................. 36V
Input Current ...................................................... ±15mA
Output Short-Circuit Duration (Note 1) .........Continuous
Operating Temperature Range ................ –40°C to 85°C
Specified Temperature Range (Note 2) .....
–40°C to 85°C
Junction Temperature........................................... 150°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)..................300°C
PACKAGE/ORDER INFORMATION
W
U
U
ORDER PART
NUMBER
ORDER PART
NUMBER
S8 PART MARKING
1492
LT1492CN8
LT1492CS8
LT1493CS
T
JMAX
= 150°C, θ
JA
= 130°C/ W (N8)
T
JMAX
= 150°C, θ
JA
= 190°C/ W (S8)
1
2
3
4
8
7
6
5
TOP VIEW
OUT A
–IN A
+IN A
V
–
V
+
OUT B
–IN B
+IN B
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
A
B
1
2
3
4
5
6
7
8
TOP VIEW
S PACKAGE
16-LEAD PLASTIC SO
16
15
14
13
12
11
10
9
OUT A
–IN A
+IN A
V
+
+IN B
–IN B
OUT B
NC
OUT D
–IN D
+IN D
V
–
+IN C
–IN C
OUT C
NC
C
A
D
B
T
JMAX
= 150°C, θ
JA
= 150°C/ W
Consult factory for Industrial and Military grade parts.
V
S
= 5V, 0V; V
CM
= 0.5V, V
OUT
= 0.5V, T
A
= 25°C, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage 100 180 µV
∆V
OS
Long-Term Input Offset Voltage Stability 0.6 µV/Mo
∆Time
I
OS
Input Offset Current 520 nA
I
B
Input Bias Current 50 100 nA
Input Noise Voltage 0.1Hz to 10Hz 330 nV
P-P
e
n
Input Noise Voltage Density f
O
= 10Hz 17.3 nV/√Hz
f
O
= 1000Hz 16.5 nV/√Hz
i
n
Input Noise Current Density f
O
= 10Hz 0.78 pA/√Hz
f
O
= 1000Hz 0.14 pA/√Hz
Input Resistance (Note 3) Differential Mode 10 40 MΩ
Common Mode 800 MΩ
Input Capacitance f = 1MHz 10 pF
Input Voltage Range 3.4 3.60 V
0 –0.25 V
CMRR Common Mode Rejection Ratio V
CM
= 0V to 3.4V 86 102 dB
PSRR Power Supply Rejection Ratio V
S
= 2.5V to 12.5V 90 110 dB
5V ELECTRICAL CHARACTERISTICS