LT1012 Datasheet, PDF (9/20 Pages) Linear Technology – Picoamp Input Current, Microvolt Offset, Low Noise Op Amp

TYPICAL PERFOR A CE CHARACTERISTICS
0.1Hz to 10Hz Noise
T_A = 25°C
V_S = ±1.2V TO ± 20V
Noise Spectrum
1000
T_A = 25°C
V_S = ±1.2 TO ±20V
0
2
4
6
8
10
TIME (SECONDS)
LT1012A • TPC10
Supply Current vs Supply Voltage
500
400
25°C
125°C
–55°C
300
0
±5
±10
±15
± 20
SUPPLY VOLTAGE (V)
LT1012A • TPC13
Voltage Gain vs Frequency
140
120
100
80
60
40
20
0 VS = ±15V
T_A = 25°C
– 20
0.01 0.1 1 10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
LT1012A • TPC16
100
CURRENT NOISE
VOLTAGE NOISE
10
1/f CORNER
2.5Hz
1/f CORNER
120Hz
1
1
10
100
1000
FREQUENCY (Hz)
LT1012A • TPC11
Common Mode Rejection vs
Frequency
140
120
100
80
60
40
20 _{VS = ±15V}
T_A = 25°C
0
1 10 100 1k 10k 100k 1M
FREQUENCY (Hz)
LT1012A • TPC14
Gain, Phase Shift vs Frequency
40
100
30
PHASE
120
20
GAIN
10
PHASE MARGIN
= 70°C
0
V_S = ±15V
T_A = 25°C
–10
0.01
0.1
1
FREQUENCY (MHz)
140
160
180
200
10
LT1012A • TPC17
LT1012A/LT1012
Total Noise vs Source Resistance
10.0
T_A = 25°C
V_S = ± 1.2V TO ± 20V
AT 10Hz
AT 1kHz
1.0
R
–
+
R
R_S = 2R
0.1
AT 10Hz
AT 1kHz
RESISTOR NOISE
ONLY
0.0110_{2 103 104 105 106 107 108}
SOURCE RESISTANCE (Ω)
LT1012A • TPC12
Power Supply Rejection vs
Frequency
140
120
100
NEGATIVE
SUPPLY
80
60
POSITIVE
SUPPLY
40
V_S = ±15V
T_A = 25°C
20
0.1 1 10
100 1k
10k 100k 1M
FREQUENCY (Hz)
LT1012A • TPC15
Voltage Gain vs Load Resistance
10M
V_S = ±15V
V₀ = ±10V
3M
– 55°C
25°C
1M
125°C
300k
100k
1
2
5
10
20
LOAD RESISTANCE (kΩ)
LT1012A • TPC18
sn1012 1012afbs
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