Datasheet

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SBOS077B − JUNE 1997 − REVISED MARCH 2005
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5
TYPICAL CHARACTERISTICS
At T
A
= +25°C, V
S
= +5V, and R
L
= 25kΩ connected to V
S
/2, unless otherwise noted.
OPEN−LOOP GAIN/PHASE vs FREQUENCY
Frequency (Hz)
Open−Loop Gain (dB)
Phase (_)
160
140
120
100
80
60
40
20
0
−20
1 10 100 10k1k 100k 10M1M
OPA337
OPA338
G
φ
0
−45
−90
−135
−180
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
Frequency (Hz)
Voltage Noise (nV
√
Hz)
1k
100
10
1
0.1
1k
100
10
1
0.1
1 10 100 1k 10k 100k 1M
Current Noise (fA√Hz)
Voltage Noise
Current Noise
INPUT BIAS CURRENT vs TEMPERATURE
Temperature (_C)
Input Bias Current (pA)
100
10
1
0.1
0.01
−75 −50 −25 0 25 50 75 100 125
POWER−SUPPLY REJECTION RATIO AND
COMMON−MODE REJECTION RATIO vs FREQUENCY
Frequency (Hz)
PSRR, CMRR (dB)
100
90
80
70
60
50
40
30
20
10
1 10 100 1k 10k 100k 1M 10M
+PSRR
−
PSRR
CMRR
CHANNEL SEPARATION vs FREQUENCY
Frequency (Hz)
Channel Separation (dB)
140
130
120
110
100
90
80
100 10k1k 1M100k
Dual Versions
INPUT BIAS CURRENT
vs INPUT COMMON−MODE VOLTAGE
Common−Mode Voltage (V)
Input Bias Current (pA)
0.5
0.4
0.3
0.2
0.1
0
−
0.1
−
1210543