Datasheet

5
LT1002
1002fb
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
Distribution of Offset Voltage
Match Drift with Temperature
INPUT OFFSET VOLTAGE DRIFT
WITH TEMPERATURE (µV/°C)
NUMBER OF UNITS
70
60
50
40
30
20
10
0
1002 G02
–1.2
–0.8
–0.4 0 +0.4 +0.8 +1.2
260 UNITS TESTED
V
S
= ±15V
Offset Voltage Drift with Temperature
of Six Representative Units
Offset Voltage Tracking with Temperature
of Six Representative Units
Long Term Stability of Four
Representative Units
TIME (MONTHS)
0
OFFSET VOLTAGE CHANGE (µV)
4
1001 G07
1
2
3
5
10
5
0
–5
–10
FREQUENCY (Hz)
1
1
3
10
30
100
0.1
1
3
10
10 100 1000
1002 G09
VOLTAGE NOISE nV/√Hz
T
A
= 25°C
V
S
= ±3 TO ±18V
VOLTAGE
CURRENT
1/f CORNER
70Hz
1/f CORNER
4Hz
0.3
CURRENT NOISE pA/√Hz
TIME (SECONDS)
0
NOISE VOLTAGE 100nV/DIV
8
1001 G08
2
4
6
10
Distribution of Offset Voltage Drift
with Temperature
(Individual Amplifiers)
Distribution of Offset Voltage of
Individual Amplifiers
OFFSET VOLTAGE MATCH DRIFT
WITH TEMPERATURE (µV/°C)
NUMBER OF UNITS
35
30
25
20
15
10
5
1002 G03
–1.2
–0.8
–0.4 0 +0.4 +0.8 +1.2
130 UNITS TESTED
V
S
= ±15V
Warm-Up Drift
TIME AFTER POWER ON –
BOTH AMPLIFIERS (MINUTES)
0
CHANGE IN OFFSET VOLTAGE (MICROVOLTS)
5
4
3
2
1
0
4
1002 G06
1
2
3
5
V
S
= ±15V
T
A
= 25°C
N14 PLASTIC PACKGE
J14 HERMETIC DIP PACKGE
TEMPERATURE (°C)
–50
OFFSET VOLTAGE MATCH (µV)
100
80
60
40
20
0
–20
–40
–60
–80
–100
0
50
75
1002 G04
–25
25
100
125
LT1002AM
LT1002AM
LT1002AM
LT1002M
LT1002M
V
S
= ±15V
LT1002M
TEMPERATURE (°C)
–50
INDIVIDUAL AMPLIFIER OFFSET VOLTAGE (µV)
100
80
60
40
20
0
–20
–40
–60
–80
–100
0
50
75
1002 G04
–25
25
100
125
LT1002AM
LT1002AM
LT1002AM
LT1002M
LT1002M
LT1002M
0.1Hz to 10Hz Noise Noise Spectrum
INPUT OFFSET VOLTAGE (µV)
–100 –80
NUMBER OF UNITS
100
80
60
40
20
0
60
1002 G01
–60 –40
–20 0
20 40 80
100
574 UNITS TESTED
V
S
= ±15V
T
A
= 25°C