Datasheet

OPA27, OPA37
6
SBOS135C
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TYPICAL CHARACTERISTICS (Cont.)
At T
A
= +25°C, ±V
CC
= ±15VDC, unless otherwise noted.
INPUT VOLTAGE NOISE SPECTRAL DENSITY
1 10 100 1k
Frequency (Hz)
Voltage Noise (nV/√Hz)
10
8
6
4
2
0
OPEN-LOOP FREQUENCY RESPONSE
Frequency (Hz)
10 100 1k 10k 100k 1M 10M 100M
140
120
100
80
60
40
20
0
Voltage Gain (dB)
OPA27
OPA37
BIAS AND OFFSET CURRENT vs TEMPERATURE
Ambient Temperature (°C)
–75 –50 –25 0 +25 +50
Bias
Offset
+75 +100 +125
Absolute Bias Current (nA)
20
15
10
5
0
Absolute Offset Current (nA)
20
15
10
5
0
OPA27 CLOSED-LOOP VOLTAGE GAIN AND
PHASE SHIFT vs FREQUENCY (G = 100)
Frequency (Hz)
10 100 1k 10k 100k 1M 10M 100M
Voltage Gain (dB)
Phase Shift (degrees)
50
40
30
20
10
0
–10
–20
0
–45
–90
–135
–180
–225
∅
Gain
OPA37 CLOSED-LOOP VOLTAGE GAIN AND
PHASE SHIFT vs FREQUENCY (G = 100)
Frequency (Hz)
10 100 1k 10k 100k 1M 10M 100M
Voltage Gain (dB)
Phase Shift (degrees)
50
40
30
20
10
0
–10
–20
0
–45
–90
–135
–180
–225
Ø
Gain
G = 5
COMMON-MODE REJECTION vs FREQUENCY
140
120
100
80
60
40
20
0
Common-Mode Rejection (dB)
Frequency (Hz)
1 10 100 1k 10k 100k 1M 10M
OPA37
OPA27