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