LT1078_1 Datasheet, PDF (7/20 Pages) Linear Technology – Micropower, Dual and Quad, Single Supply, Precision Op Amps

LT1078/LT1079
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Temperature
55
50
V_S = ±15V
45
40
35
V_S = 5V, 0V
30
25
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1078/79 • TPC01
0.1Hz to 10Hz Noise
T_A = 25°C
V_S = ±2.5V
CHANNEL A
CHANNEL B
0
2
4
6
8
10
TIME (SEC)
LT1078/79 • TPC04
10Hz Voltage Noise Distribution
35
T_A = 25°C
30
V_S = ± 2.5V
329 OP AMPS TESTED
25
FROM THREE RUNS
106 LT1078'S
20
45 LT1079'S
15
10
5
0
25
30
35
40
VOLTAGE NOISE DENSITY (nV/√Hz)
LT1078/79 • TPC07
Input Bias and Offset Currents
vs Temperature
100
V_S = 5V, 0V TO ±15V
50
I_OS
0
–5
I_B
–6
Input Bias Current
vs Common Mode Voltage
0
V_S = 5V, 0V
–2
–4
T_A = –55°C
T_A = 25°C
–6
T_A = 125°C
–8
–10
–7
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1078/79 • TPC02
0.01Hz to 10Hz Noise
T_A = 25°C
V_S = ±2.5V
0.4µV
CHANNEL A
CHANNEL B
0
20
40
60
80 100
TIME (SEC)
LT1078/79 • TPC05
Distribution of Offset Voltage Drift
with Temperature (In All Packages
Except Surface Mount)
25
V_S = 5V, 0V
V_CM = 0.1V
120
109
20 ^{120 LT1078'S}
70 LT1079'S
520 OP AMPS
89
85
15
10
47
44
5
1 ³⁵⁷
431 _{1 1}
0
–2
–1
0
1
2
OFFSET VOLTAGE DRIFT WITH TEMPERATURE (µV/°C)
LT1078/79 • TPC08
–12
–1
0
1
2
3
4
COMMON MODE VOLTAGE (V)
LT1078/79 • TPC03
Noise Spectrum
1000
300
CURRENT
NOISE
100
T_A = 25°C
V_S = ±2.5V
(AT V_S = ±15V
VOLTAGE NOISE
IS 4% LESS
CURRENT NOISE
IS UNCHANGED)
30
10
0.1
VOLTAGE
NOISE
1/f CORNER
0.7Hz
1
10
100
FREQUENCY (Hz)
1000
LT1078/79 • TPC06
Long Term Stability of Two
Representative Units (LT1078)
15
T_A = 25°C, V_S = 5V, 0V
V_CM = 0.1V
10
1A
5
0
–5
–10
–15
0
2B
1B
2A
1
2
3
4
5
TIME (MONTHS)
LT078/79 • TPC09
10789fe
7