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OPA4137 Datasheet, PDF (4/9 Pages) Burr-Brown (TI) – LOW COST FET-INPUT OPERATIONAL AMPLIFIERS MicroAmplifier ™ Series | |||
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TYPICAL PERFORMANCE CURVES
At TA = +25°C, VS = ±15V, RL = 10kâ¦, connected to ground, unless otherwise noted.
100
80
60
40
20
0
â20
1
OPEN-LOOP GAIN/PHASE vs FREQUENCY
G
â40°C
Ï
+85°C
+25°C
0
â45
â90
â135
â180
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
POWER SUPPLY AND COMMON-MODE REJECTION
vs FREQUENCY
100
80
+PSRR
60
CMRR
40
âPSRR
20
0
10
100
1k
10k
100k
1M
Frequency (Hz)
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
1k
1
100
Voltage Noise
10
10
1
Current Noise
1
0.1
1
10 100 1k 10k
Frequency (Hz)
100k
0.1
1M
CHANNEL SEPARATION vs FREQUENCY
140
120
100
80
Dual and quad devices.
60 G = 1, all channels.
Quad measured channel
40 A to D or B to Câother
combinations yield improved
rejection.
20
100
1k
10k
100k
1M
Frequency (Hz)
INPUT BIAS CURRENT vs TEMPERATURE
10k
1k
100
10
1
0.1
â75 â50 â25
0 25 50
Temperature (°C)
75 100 125
1n
100p
INPUT BIAS CURRENT
vs INPUT COMMON-MODE VOLTAGE
Input bias current is a
function of the voltage
between the Vâ supply
and the inputs.
10p
1p
â15
â10
â5
0
5
10
15
Common-Mode Voltage (V)
®
OPA137, 2137, 4137
4
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