lt1012a Linear Technology Corporation, lt1012a Datasheet - Page 9

• Manufacturer Part Number: lt1012a
• Description: Picoamp Input Current, Microvolt Offset, Low Noise Op Amp
• Manufacturer: Linear Technology Corporation

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