lt1012a Linear Technology Corporation, lt1012a Datasheet - Page 8

• Manufacturer Part Number: lt1012a
• Description: Picoamp Input Current, Microvolt Offset, Low Noise Op Amp
• Manufacturer: Linear Technology Corporation

LT1012A/LT1012
8
TYPICAL PERFOR A CE CHARACTERISTICS
1000
–100
–150
100
100
–50
10
50
1
0
5
4
1
0
3
2
–50
1k
0
Offset Voltage vs Source
Resistance (Balanced or
Unbalanced)
Input Bias Current vs
Temperature
Warm-Up Drift
V
V
T
– 55 C TO 125 C
S
S
A
= 15V
= 25 C
–25
= 15V
3k
TIME AFTER POWER ON (MINUTES)
1
10k
SOURCE RESISTANCE ( )
OVERCANCELLED
UNDERCANCELLED UNIT
METAL CAN (H) PACKAGE
DUAL-IN-LINE PACKAGE
PLASTIC (N) OR SO (S)
0
TEMPERATURE ( C)
30k
UNIT
2
25
25 C
100k
50
300k 1M 3M 10M
3
75
W
4
LT1012A • TPC07
LT1012A • TPC04
100
LT1012A • TPC01
U
125
5
200
160
120
–20
–40
–60
–10
–6
–8
80
40
10
–2
–4
60
40
20
0
8
6
4
0
2
0
–15
0
Typical Distribution of Input Bias
Current
Long Term Stability of Four
Representative Units
Input Bias Current Over Common
Mode Range
V
T
V
–120
A
S
CM
V
T
= 15V
= 25 C
S
A
= 0V
–10
COMMON MODE INPUT VOLTAGE
= 15V
= 25
1
INPUT BIAS CURRENT (pA)
o
– 60
C
–5
TIME (MONTHS)
2
DEVICE WITH NEGATIVE
DEVICE WITH POSITIVE
V
0
0
CM
R
I
B
IN CM
3
INPUT CURRENT
INPUT CURRENT
5
60
1020 UNITS
FROM THREE
RUNS
= 2 X 10
–
+
LT1012A • TPC02
LT1012A • TPC08
4
10
LT1012A * TPC5
120
12
15
5
200
160
120
100
–20
–60
–40
1.0
0.1
80
40
10
60
40
20
0
0
–50
1k
Typical Distribution of Input
Offset Current
Offset Voltage Drift with Temperature
of Four Representative Units
Offset Voltage Drift vs Source
Resistance (Balanced or
Unbalanced)
V
T
MAXIMUM
TYPICAL
V
–120
S
A
CM
= 15V
= 25 C
–25
= 0V
10k
INPUT OFFSET CURRENT (pA)
SOURCE RESISTANCE ( )
–60
0
TEMPERATURE ( C)
100k
25
0
50
1M
60
1020 UNITS
FROM THREE
RUNS
75
sn1012 1012afbs
10M
LT1012A • TPC03
LT1012A • TPC09
LT1012 • TPC06
100
120
100M
125