OP270
Typical Performance Characteristics–
10
9
5
4
3
2
1
0.1HzTO 10Hz NOISE
T
= 25؇C
= ؎15V
A
S
T
= 25؇C
A
V
8
7
6
5
4
AT 10Hz
AT 1kHz
3
2
1/f CORNER = 5Hz
1
1
10
100
1k
0
؎5
؎10
؎15
؎20
TIME (1sec/DIV)
T
= 25؇C
= ؎15V
A
S
SUPPLYVOLTAGE (V)
FREQUENCY (Hz)
V
TPC 2. Voltage Noise Density
vs. Supply Voltage
TPC 1. Voltage Noise Density
vs. Frequency
TPC 3. 0.1 Hz to 10 Hz Input
Voltage Noise
5
40
10
T
V
= 25؇C
= ؎15V
A
V
= ؎15V
T
= 25؇C
S
A
S
V
= ؎15V
30
20
S
4
3
2
1
0
10
1.0
0.1
0
–10
–20
–30
1/f CORNER = 200Hz
0
1
2
3
4
5
–75 –50 –25
0
25
50
75 100 125
10
100
1k
10k
TIME (Minutes)
TEMPERATURE (؇C)
FREQUENCY (Hz)
TPC 4. Current Noise Density
vs. Frequency
TPC 6. Warm-Up Offset Voltage
Drift
TPC 5. Input Offset Voltage vs.
Temperature
7
5
7
V
V
= ؎15V
V
= ؎15V
S
= 0V
T
V
= 25؇C
= ؎15V
S
A
= 0V
V
CM
CM
S
6
5
4
3
2
4
3
2
1
0
6
5
4
3
2
–75 –50 –25
0
25
50
75 100 125
–75 –50 –25
0
25
50
75 100 125
–10.0
–12.5
–5.0
0.0
5.0
10.0
–7.5
–2.5
2.5
7.5
12.5
TEMPERATURE (؇C)
TEMPERATURE (؇C)
COMMON-MODEVOLTAGE (V)
TPC 9. Input Bias Current vs.
Common-Mode Voltage
TPC 7. Input Bias Current vs.
Temperature
TPC 8. Input Offset Current vs.
Temperature
–5–
REV. C