LT1490/LT1491
W W U W
ABSOLUTE MAXIMUM RATINGS
Total Supply Voltage (V+ to V–) .............................. 44V
Input Differential Voltage ......................................... 44V
Input Current ...................................................... ±25mA
Output Short-Circuit Duration (Note 1) .........Continuous
Operating Temperature Range ................ –40°C to 85°C
Junction Temperature........................................... 150°C
Specified Temperature Range (Note 2) .. –40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
U
W U
PACKAGE/ORDER INFORMATION
TOP VIEW
ORDER PART
TOP VIEW
ORDER PART
NUMBER
OUT A
–IN A
+IN A
1
2
3
4
5
6
7
14 OUT D
13 –IN D
+
NUMBER
1
2
3
4
8
7
6
5
OUT A
–IN A
+IN A
V
LT1490CMS8
LT1490CN8
LT1490CS8
A
B
D
C
OUT B
–IN B
+IN B
12 +IN D
–
A
LT1491CN
LT1491CS
+
V
11
V
B
–
V
+IN B
–IN B
OUT B
10 +IN C
9
8
– IN C
OUT C
MS8 PACKAGE
8-LEAD MSOP
N8 PACKAGE
8-LEAD PDIP
MS8 PART MARKING
LTBB
S8 PACKAGE
8-LEAD PLASTIC SO
N PACKAGE
S PACKAGE
14-LEAD PDIP 14-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 110°C/ W (N)
TJMAX = 150°C, θJA = 150°C/ W (S)
S8 PART MARKING
1490
TJMAX = 150°C, θJA = 250°C/ W (MS8)
JMAX = 150°C, θJA = 130°C/ W (N8)
JMAX = 150°C, θJA = 190°C/ W (S8)
T
T
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS
VS = 3V, 0V; VS = 5V, 0V; VCM = VOUT = half supply, TA = 25°C, unless otherwise noted. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
LT1490 N Package
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
220
800
1000
1100
µV
µV
µV
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
LT1490 S Package
220
300
350
950
1200
1300
µV
µV
µV
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
LT1491 N Package
1100
1350
1450
µV
µV
µV
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
LT1490CMS8 Package, LT1491 S Package
1450
1650
1750
µV
µV
µV
0°C ≤ T ≤ 70°C
●
●
A
–40°C ≤ T ≤ 85°C
A
Input Offset Voltage Drift
Input Offset Current
0°C ≤ T ≤ 70°C (Note 6)
●
2
4
µV/°C
A
I
I
●
●
0.2
0.8
0.8
nA
µA
OS
V
= 44V (Note 3)
CM
Input Bias Current
●
●
4
4
0.1
8
10
nA
µA
nA
B
V
= 44V (Note 3)
CM
V = 0V
S
Input Noise Voltage
0.1Hz to 10Hz
f = 1kHz
1
µV
P-P
e
n
Input Noise Voltage Density
Input Noise Current Density
50
nV/√Hz
pA/√Hz
i
n
f = 1kHz
0.03
2
Linear [ Linear ]
