Datasheet
LT1881/LT1882
5
18812fb
SYMBOL PARAMETER CONDITIONS
C/I Grades H/MP Grades
UNITSMIN TYP MAX MIN TYP MAX
ΔI
B
+
Noninverting Bias Current Match
(LT1881/LT1882)
(Note 7)
0°C < T
A
< 70°C
–40°C < T
A
< 85°C
–40°C < T
A
< 125°C
–55°C < T
A
< 125°C
l
l
l
l
250 700
900
1000
250 700
2000
2000
pA
pA
pA
pA
pA
ΔCMRR
Common Mode Rejection Ratio
Match
(Notes 7, 9)
l
102 125 100 125 dB
ΔPSRR
Power Supply Rejection Match
(Notes 7, 9)
V
–
= 0V, V
CM
= 1.5V
0°C < T
A
< 85°C, 2.7V < V
+
< 32V
0°C < T
A
< 125°C, 2.7V < V
+
< 32V
T
A
= –40°C, 3V < V
+
< 32V
T
A
= –55°C, 3V < V
+
< 32V
l
l
104
104
126
126
102
102
126
126
dB
dB
dB
dB
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. Single supply operation V
S
= 5V, 0V; V
CM
= V
S
/2 unless otherwise noted.
(Note 5)
The
l denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at T
A
= 25°C.
Split supply operation V
S
= ±15V, V
CM
= 0V unless otherwise noted. (Note 5)
SYMBOL PARAMETER CONDITIONS
C/I Grades H/MP Grades
UNITSMIN TYP MAX MIN TYP MAX
V
OS
Input Offset Voltage
(LT1881A) 0°C < T
A
< 70°C
–40°C < T
A
< 85°C
l
l
25 50
85
110
μV
μV
μV
Input Offset Voltage
(LT1881/LT1882) 0°C < T
A
< 70°C
–40°C < T
A
< 85°C
–40°C < T
A
< 125°C
–55°C < T
A
< 125°C
l
l
l
l
30 80
125
150
30 80
300
300
μV
μV
μV
μV
μV
ΔV
OS
/ΔT
Input Offset Voltage Drift
(Note 6)
0°C < T
A
< 70°C
–40°C < T
A
< 85°C
–40°C < T
A
< 125°C
–55°C < T
A
< 125°C
l
l
l
l
0.3
0.3
0.8
0.8
0.3
0.3
0.8
0.8
μV/°C
μV/°C
μV/°C
μV/°C
ΔV
OS
/
ΔTIME
Long-Term Input Offset
Voltage Stability
0.3 0.3 μV/month
I
OS
Input Offset Current (LT1881A)
0°C < T
A
< 70°C
–40°C < T
A
< 85°C
l
l
100 200
250
300
pA
pA
pA
Input Offset Current
(LT1881/LT1882) 0°C < T
A
< 70°C
–40°C < T
A
< 85°C
–40°C < T
A
< 125°C
–55°C < T
A
< 125°C
l
l
l
l
150 500
600
700
150 500
2000
2000
pA
pA
pA
pA
pA
I
B
Input Bias Current (LT1881A)
0°C < T
A
< 70°C
–40°C < T
A
< 85°C
l
l
100 200
250
300
pA
pA
pA
Input Bias Current
(LT1881/LT1882) 0°C < T
A
< 70°C
–40°C < T
A
< 85°C
–40°C < T
A
< 125°C
–55°C < T
A
< 125°C
l
l
l
l
150 500
600
700
150 500
3000
3000
pA
pA
pA
pA
pA