7
LT1112/LT1114
111214fb
Distribution of Offset Voltage
Match Drift (LT1112J8, LT1112N8,
LT1114J Packages)
Distribution of Offset
Voltage Match
∆V
OS
, OFFSET VOLTAGE MATCH (µV)
–100
PERCENT OF UNITS
15
20
25
60
LT1112/14 • TPC07
10
5
0
–60
–20
20
100
40
–80
–40
0
80
V
S
= ±15V
T
A
= 25°C
OFFSET VOLTAGE MATCH DRIFT (µV/°C)
–0.8
0
PERCENT ON UNITS
5
10
15
20
–0.4 0
0.4
0.8
LT1112/14 • TPC08
25
30
–0.6 –0.2 0.2
0.6
V
S
= ±15V
342 PAIRS TESTED
OFFSET VOLTAGE MATCH DRIFT (µV/°C)
–1.6
0
PERCENT OF UNITS
5
10
15
20
–1.2 –0.8 –0.4 0
LT1112/14 • TPC09
0.4 0.8 1.2 1.6
V
S
= ±15V
364 PAIRS TESTED
Distribution of Offset Voltage
Match Drift (LT1112S8, LT1114N,
LT1114S Packages)
TYPICAL PERFOR A CE CHARACTERISTICS
UW
0.1Hz to 10Hz Noise 0.01Hz to 1Hz Noise
Supply Current per Amplifier
vs Supply Voltage
TIME (MONTHS)
0
–6
CHANGE IN OFFSET VOLTAGE (µV)
–4
–2
0
2
6
1
234
LT1112/14 • TPC14
56
4
V
S
= ±15V
T
A
= 25°C
2A
2B
1A
1B
3A
3B
Long Term Stability of Three
Representative Units
Warm-Up Drift
SUPPLY VOLTAGE (V)
0
SUPPLY CURRENT PER AMPLIFIER (µA)
400
500
±20
LT1112/14 • TPC15
300
200
±5
±10
±15
600
T
A
= 125°C
T
A
= 25°C
T
A
= –55°C
Noise Spectrum
FREQUENCY (Hz)
1
1
10
100
1000
10 100 1000
LT1112/14 • TPC10
VOLTAGE NOISE DENSITY (nV/√Hz)
CURRENT NOISE DENSITY (fA/√Hz)
V
S
= ±1V TO ±20V
T
A
= 25°C
CURRENT NOISE
VOLTAGE NOISE
1/f
CORNER
2.5Hz
1/f
CORNER
140Hz
TIME (SEC)
0
NOISE VOLTAGE (0.2µV/DIV)
8
LT1112/14 • TPC11
2
4
6
10
V
S
= ±15V
T
A
= 25°C
TIME AFTER POWER ON (MINUTES)
0
0
CHANGE IN OFFSET VOLTAGE (µV)
1
2
3
0.5 1.0 1.5 2.0
LT1112/14 • TPC13
2.5
V
S
= ±15V
T
A
= 25°C
LT1112S8, LT1114N/S PACKAGES
LT1114J PACKAGE
LT1112J8, N8 PACKAGES
TIME (SEC)
0
NOISE VOLTAGE (0.2µV/DIV)
80
LT1112/14 • TPC12
20
40
60
100
V
S
= ±15V
T
A
= 25°C
