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OPA237 Datasheet(PDF) 6 Page - Texas Instruments

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Part No. OPA237
Description  SINGLE-SUPPLY OPERATIONAL AMPLIFIERS MicroAmplifier™ Series
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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OPA237 Datasheet(HTML) 6 Page - Texas Instruments

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6
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OPA237, 2237, 4237
INPUT BIAS CURRENT
vs INPUT COMMON-MODE VOLTAGE
–12
–11
–10
–9
–8
–7
–6
Common-Mode Voltage (V)
–15
–10
–5
0
5
10
15
V
S = ±15V
V
S = +5V
V
S = +2.7V
TYPICAL PERFORMANCE CURVES
At TA = +25°C and RL = 10kΩ, unless otherwise noted.
POWER SUPPLY and COMMON-MODE REJECTION
vs FREQUENCY
120
100
80
60
40
20
0
Frequency (Hz)
10
100
1k
10k
100k
1M
10M
+PSR (V
S = +5V, ±15V)
CMR (V
S = +2.7V, +5V or ±15V)
+PSR
(V
S = +2.7V)
–PSR
(V
S = ±15V)
INPUT NOISE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
1
1k
100
10
Frequency (Hz)
10
100
1k
10k
100k
Current Noise
Voltage Noise
OPEN-LOOP GAIN/PHASE vs FREQUENCY
1
100
80
60
40
20
0
–20
0
–45
–90
–135
–180
Frequency (Hz)
10
100
1k
10k
100k
1M
10M
C
L = 100pF
V
S = ±15V
V
S = +2.7V, +5V
Φ
G
CHANNEL SEPARATION vs FREQUENCY
Frequency (Hz)
130
120
110
100
90
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.
INPUT BIAS CURRENT vs TEMPERATURE
Temperature (°C)
14
12
10
8
6
4
–75
–50
–25
0
25
50
75
100
125
V
S = +2.7V, +5V
V
S = ±15V


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