TYPICAL PERFORMANCE CURVES
At TA = +25°C, VS = +5V, and RL = 25kΩ connected to VS/2, unless otherwise noted.
POWER SUPPLY REJECTION RATIO AND
OPEN-LOOP GAIN/PHASE vs FREQUENCY
COMMON-MODE REJECTION RATIO vs FREQUENCY
0
100
90
80
70
60
50
40
30
20
10
160
OPA337
OPA338
+PSRR
–PSRR
140
–45
120
100
φ
–90
80
60
40
G
CMRR
–135
20
–180
0
–20
1
10
100
1k
10k
100k
1M
10M
1
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
Frequency (Hz)
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
CHANNEL SEPARATION vs FREQUENCY
1k
1k
100
10
140
130
120
110
100
90
Voltage Noise
100
10
1
1
Dual Versions
Current Noise
0.1
0.1
80
1
10
100
1k
10k
100k
1M
100
1k
10k
100k
1M
Frequency (Hz)
Frequency (Hz)
INPUT BIAS CURRENT
vs INPUT COMMON-MODE VOLTAGE
INPUT BIAS CURRENT vs TEMPERATURE
100
10
0.5
0.4
0.3
0.2
0.1
0
1
0.1
0.01
–0.1
–75
–50
–25
0
25
50
75
100
125
–1
0
1
2
3
4
5
Temperature (°C)
Common-Mode Voltage (V)
®
OPA337, OPA2337
OPA338, OPA2338
4
BB [ BURR-BROWN CORPORATION ]
