LT1112_1 Datasheet, PDF (7/16 Pages) Linear Integrated Systems – Dual/Quad Low Power Precision, Picoamp Input Op Amps

TYPICAL PERFOR A CE CHARACTERISTICS
Distribution of Offset
Voltage Match
25
V_S = ±15V
T_A = 25°C
20
15
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
V_S = ±1V TO ±20V
T_A = 25°C
Distribution of Offset Voltage
Match Drift (LT1112J8, LT1112N8,
LT1114J Packages)
30
V_S = ±15V
342 PAIRS TESTED
25
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
0.1Hz to 10Hz Noise
V_S = ±15V
T_A = 25°C
100
CURRENT NOISE
10
1/f_CORNER
2.5Hz
VOLTAGE NOISE
1/f_CORNER
140Hz
1
1
10
100
1000
FREQUENCY (Hz)
LT1112/14 • TPC10
Warm-Up Drift
3
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
2.5
TIME AFTER POWER ON (MINUTES)
LT1112/14 • TPC13
0
2
4
6
8
10
TIME (SEC)
LT1112/14 • TPC11
Long Term Stability of Three
Representative Units
6
V_S = ±15V
T_A = 25°C
2A
4
2
3A
2B
0
1A
–2
3B
1B
–4
–6
012
3
4
TIME (MONTHS)
56
LT1112/14 • TPC14
LT1112/LT1114
Distribution of Offset Voltage
Match Drift (LT1112S8, LT1114N,
LT1114S Packages)
20
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
0.01Hz to 1Hz Noise
V_S = ±15V
T_A = 25°C
0
20
40
60
80 100
TIME (SEC)
LT1112/14 • TPC12
Supply Current per Amplifier
vs Supply Voltage
600
500
400
300
200
0
T_A = 125°C
T_A = 25°C
T_A = –55°C
±5
±10
±15
±20
SUPPLY VOLTAGE (V)
LT1112/14 • TPC15
111214fb
7