Datasheet

9
sn1012 1012afbs
LT1012A/LT1012
0.1Hz to 10Hz Noise
Common Mode Rejection vs
Frequency
Total Noise vs Source Resistance
Power Supply Rejection vs
Frequency
Noise Spectrum
Voltage Gain vs Frequency Voltage Gain vs Load Resistance
Supply Current vs Supply Voltage
Gain, Phase Shift vs Frequency
TIME (SECONDS)
0
NOISE VOLTAGE 400nV/DIVISION
8
2
4
6
10
T
A
= 25°C
V
S
= ±1.2V TO ±20V
LT1012A • TPC10
SUPPLY VOLTAGE (V)
0
SUPPLY CURRENT (µA)
400
±20
25°C
125°C
–55°C
300
±5
±10
±15
500
LT1012A • TPC13
FREQUENCY (Hz)
1
140
120
100
80
60
40
20
0
1k 100k
10 100
10k 1M
COMMON MODE REJECTION RATIO (dB)
V
S
= ±15V
T
A
= 25°C
LT1012A • TPC14
FREQUENCY (Hz)
0.1
POWER SUPPLY REJECTION RATIO (dB)
100
120
140
100 10k
80
60
110
1k 100k 1M
40
20
V
S
= ±15V
T
A
= 25°C
NEGATIVE
SUPPLY
POSITIVE
SUPPLY
LT1012A • TPC15
FREQUENCY (Hz)
0.01
VOLTAGE GAIN (dB)
60
80
100
100 1k 10k 100k 1M 10M
40
20
–20
0.1
1
10
0
140
120
LT1012A • TPC16
V
S
= ±15V
T
A
= 25°C
FREQUENCY (MHz)
0.01
–10
GAIN (dB)
20
30
40
0.1 1 10
10
0
200
140
120
100
160
180
GAIN
LT1012A • TPC17
PHASE SHIFT (DEGREES)
V
S
= ±15V
T
A
= 25°C
PHASE
PHASE MARGIN
= 70°C
LOAD RESISTANCE (kΩ)
1
100k
300k
1M
10M
3M
VOLTAGE GAIN
521020
V
S
= ±15V
V
0
= ±10V
25°C
125°C
–55°C
LT1012A • TPC18
FREQUENCY (Hz)
1
1
CURRENT NOISE DENSITY (fA√Hz)
10
100
1000
10 100 1000
VOLTAGE NOISE DENSITY (nV√Hz)
T
A
= 25°C
V
S
= ±1.2 TO ±20V
CURRENT NOISE
VOLTAGE NOISE
LT1012A • TPC11
1/f CORNER
120Hz
1/f CORNER
2.5Hz
TOTAL NOISE DENSITY (µV/√Hz)
SOURCE RESISTANCE (Ω)
10
2
10
3
10
4
10
5
10
6
10
7
0.01
1.0
10.0
10
8
0.1
T
A
= 25°C
V
S
= ±1.2V TO ±20V
LT1012A • TPC12
R
S
= 2R
R
R
+
–
AT 10Hz
AT 1kHz
RESISTOR NOISE
ONLY
AT 10Hz
AT 1kHz
TYPICAL PERFOR A CE CHARACTERISTICS
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