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LT1012_15 Datasheet, PDF (8/20 Pages) Linear Technology – Picoamp Input Current, Microvolt Offset, Low Noise Op Amp | |||
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LT1012A/LT1012
TYPICAL PERFOR A CE CHARACTERISTICS
Offset Voltage vs Source
Resistance (Balanced or
Unbalanced)
1000
VS = ±15V
100
Typical Distribution of Input Bias
Current
200
VS = ±15V
TA = 25°C
160 VCM = 0V
1020 UNITS
FROM THREE
RUNS
120
â 55°C TO 125°C
25°C
80
10
40
Typical Distribution of Input
Offset Current
200
VS = ±15V
TA = 25°C
160 VCM = 0V
1020 UNITS
FROM THREE
RUNS
120
80
40
1
1k 3k 10k 30k 100k 300k 1M 3M 10M
SOURCE RESISTANCE (â¦)
LT1012A ⢠TPC01
0
â120 â 60
0
60
120
INPUT BIAS CURRENT (pA)
LT1012A ⢠TPC02
Input Bias Current vs
Temperature
100
50
0
â50
â100
UNDERCANCELLED UNIT
OVERCANCELLED
UNIT
â150
â50 â25
0 25 50 75
TEMPERATURE (°C)
100 125
LT1012A ⢠TPC04
Warm-Up Drift
5
VS = ±15V
TA = 25°C
4
3
2
METAL CAN (H) PACKAGE
DUAL-IN-LINE PACKAGE
1
PLASTIC (N) OR SO (S)
0
0
1
2
3
4
5
TIME AFTER POWER ON (MINUTES)
LT1012A ⢠TPC07
Input Bias Current Over Common
Mode Range
60
VS = ±15V
TA = 25oC
40
DEVICE WITH POSITIVE
INPUT CURRENT
20
RIN CM = 2 X 1012â¦
0
DEVICE WITH NEGATIVE
INPUT CURRENT
â20
IB
â
VCM
+
â40
â60
â15
â10 â5
0
5
10 15
COMMON MODE INPUT VOLTAGE
LT1012A * TPC5
Long Term Stability of Four
Representative Units
10
8
6
4
2
0
â2
â4
â6
â8
â10
0
1
2
3
4
5
TIME (MONTHS)
LT1012A ⢠TPC08
8
0
â120 â60
0
60
120
INPUT OFFSET CURRENT (pA)
LT1012A ⢠TPC03
Offset Voltage Drift vs Source
Resistance (Balanced or
Unbalanced)
100
10
1.0 MAXIMUM
TYPICAL
0.1
1k
10k 100k 1M 10M
SOURCE RESISTANCE (â¦)
100M
LT1012 ⢠TPC06
Offset Voltage Drift with Temperature
of Four Representative Units
60
40
20
0
â 20
â 40
â 60
â50 â25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1012A ⢠TPC09
sn1012 1012afbs
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