LT1881 Просмотр технического описания (PDF) - Linear Technology
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LT1881 Datasheet PDF : 18 Pages
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LT1881/LT1882
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. Single supply operation VS = 5V, 0V; VCM = VS/2 unless otherwise noted.
(Note 5)
SYMBOL PARAMETER
ΔIB+
Noninverting Bias Current Match
(LT1881/LT1882)
ΔCMRR
ΔPSRR
Common Mode Rejection Ratio
Match
Power Supply Rejection Match
(Notes 7, 9)
CONDITIONS
(Note 7)
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
(Notes 7, 9)
C/I Grades
MIN TYP MAX
250 700
l
900
l
1000
l
l
l 102 125
V– = 0V, VCM = 1.5V
0°C < TA < 85°C, 2.7V < V+ < 32V l 104 126
0°C < TA < 125°C, 2.7V < V+ < 32V l
TA = –40°C, 3V < V+ < 32V
104 126
TA = –55°C, 3V < V+ < 32V
H/MP Grades
MIN TYP MAX
250 700
2000
2000
100 125
102 126
102 126
UNITS
pA
pA
pA
pA
pA
dB
dB
dB
dB
dB
The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
Split supply operation VS = ±15V, VCM = 0V unless otherwise noted. (Note 5)
C/I Grades
H/MP Grades
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX MIN TYP MAX UNITS
VOS
Input Offset Voltage
(LT1881A)
Input Offset Voltage
(LT1881/LT1882)
ΔVOS /ΔT
Input Offset Voltage Drift
(Note 6)
ΔVOS /
ΔTIME
Long-Term Input Offset
Voltage Stability
0°C < TA < 70°C
– 40°C < TA < 85°C
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
25 50
l
85
l
110
30 80
l
125
l
150
l
l
l
0.3 0.8
l
0.3 0.8
l
l
0.3
μV
μV
μV
30 80
μV
μV
μV
300
μV
300
μV
0.3 0.8
0.3 0.8
μV/°C
μV/°C
μV/°C
μV/°C
0.3
μV/month
IOS
Input Offset Current (LT1881A)
0°C < TA < 70°C
– 40°C < TA < 85°C
Input Offset Current
(LT1881/LT1882)
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
IB
Input Bias Current (LT1881A)
0°C < TA < 70°C
– 40°C < TA < 85°C
Input Bias Current
(LT1881/LT1882)
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
100 200
l
250
l
300
150 500
l
600
l
700
l
l
100 200
l
250
l
300
150 500
l
600
l
700
l
l
pA
pA
pA
150 500
pA
pA
pA
2000
pA
2000
pA
pA
pA
pA
150 500
pA
pA
pA
3000
pA
3000
pA
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