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OPA131 Datasheet(PDF) 4 Page - Texas Instruments

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Part # OPA131
Description  General-Purpose FET-INPUT OPERATIONAL AMPLIFIERS
PDF  20 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

OPA131 Datasheet(HTML) 4 Page - Texas Instruments

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OPA131, 2131, 4131
4
SBOS040A
www.ti.com
TYPICAL CHARACTERISTICS
At TA = +25°C, VS = ±15V, and RL = 2kΩ, unless otherwise noted.
POWER SUPPLY AND COMMON-MODE REJECTION
vs FREQUENCY
Frequency (Hz)
120
100
80
60
40
20
0
120
100
80
60
40
20
0
10
100
1k
10k
100k
1M
CMR
+PSR
–PSR
CHANNEL SEPARATION vs FREQUENCY
Frequency (Hz)
160
140
120
100
80
10
100
1k
10k
100k
Dual and quad devices.
G = 1, all channels.
Quad measured channel
A to D or B to C—other
combinations yield improved
rejection.
R
L = ∞
R
L = 2kΩ
OPEN-LOOP GAIN/PHASE vs FREQUENCY
1
120
100
80
60
40
20
0
–20
0
–45
–90
–135
–180
Frequency (Hz)
10
100
1k
10k
100k
1M
10M
∅
G
INPUT BIAS AND INPUT OFFSET CURRENT
vs TEMPERATURE
Ambient Temperature (
°C)
10k
1k
100
10
1
0.1
0.01
–75
–50
–25
0
25
50
75
100
125
I
B
I
OS
V
CM = 0V
INPUT BIAS CURRENT
vs INPUT COMMON-MODE VOLTAGE
Common-Mode Voltage (V)
1k
100
10
1
–15
–10
–50
5
10
15
Input bias current is a
function of the voltage
between the V– supply
and the inputs.
V
S = ±15V
V
S = ±5V
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
1
1k
100
10
Frequency (Hz)
10
100
1k
10k
100k
1M
1
1k
100
10
1
Voltage Noise
Current Noise



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