OP270 Data Sheet
Rev. F | Page 6 of 20
TYPICAL PERFORMANCE CHARACTERISTICS
00352-004
10
3
4
5
6
7
8
9
2
1
1 10 100 1k
VOLTAGE NOISE DENSITY (nV/√Hz)
FREQUENCY (Hz)
T
A
= 25°C
V
S
= ±15V
1/f CORNER = 5Hz
Figure 3. Voltage Noise Density vs. Frequency
00352-005
5
3
4
2
1
0 ±5 ±10 ±15 ±20
VOLTAGE NOISE DENSITY (nV/√Hz)
SUPPLY VOLTAGE (V)
T
A
= 25°C
AT 1kHz
AT 10kHz
Figure 4. Voltage Noise Density vs. Supply Voltage
00352-006
NOISE VOLTAGE (100nV/DIV)
TIME (1 sec/DIV)
0.1Hz TO 10Hz NOISE
T
A
= 25°C
T
S
= ±15V
Figure 5. 0.1 Hz to 10 Hz Input Voltage Noise
00352-007
10
1
0.1
10 100 1k 10k
CURRENT NOISE DENSITY (pA/√Hz)
FREQUENCY (Hz)
T
A
= 25°C
V
S
= ±15V
1/f CORNER = 200Hz
Figure 6. Current Noise Density vs. Frequency
00352-008
40
0
10
20
30
–30
–20
–10
–75 –50 –25 25 50 75 100 1250
VOLTAGE (µV)
TEMPERATURE (°C)
V
S
= ±15V
Figure 7. Input Offset Voltage vs. Temperature
00352-009
5
4
0
1
2
3
023451
CHANGE IN OFFSET VOLTAGE (µA)
TIME (Minutes)
T
A
= 25°C
V
S
= ±15V
Figure 8. Warm-Up Offset Voltage Drift