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OPA37 Datasheet(PDF) 12 Page - Texas Instruments

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Part # OPA37
Description  Ultra-Low Noise, Precision OPERATIONAL AMPLIFIERS
PDF  22 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

OPA37 Datasheet(HTML) 12 Page - Texas Instruments

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OPA27, OPA37
12
SBOS135C
www.ti.com
FIGURE 12. Low Noise Instrumentation Amplifier.
FIGURE 13. Hydrophone Preamplifier.
FIGURE 14. Long-Wavelength Infrared Detector Amplifier.
FIGURE 15. High Performance Synchronous Demodulator.
Output
OPA37
2
3
6
OPA37
3
2
6
6
1
5
3
2
INA105
Differential Amplifier
Input Stage Gain = 1 + 2R
F /RG
+In
–In
R
G
101
Ω
R
F
5k
Ω
R
F
5k
Ω
Gain = 100
Bandwidth
≈ 500kHz
For Gain = 1000, use INA106 differential amplifier.
25k
Ω
25k
Ω
25k
Ω
25k
Ω
OPA37
Output
1k
Ω
2k
Ω
EDO 6166
Transducer
Frequency Response
≈ 1kHz to 50kHz
2
3
6
1M
Ω
200
Ω
500pF
0.1
µF
Output
NOTE: Use metal film resistors
and plastic film capacitor. Circuit
must be well shielded to achieve
low noise.
Responsivity
≈ 2.5 x 104V/W
Output Noise
≈ 30µVrms, 0.1Hz to 10Hz
Dexter 1M
Thermopile
Detector
100
Ω
100k
Ω
OPA27
2
3
6
0.1
µF
Output
4.99k
Ω
D2
D1
DG188
TTL
In
S1
S2
9.76k
Ω
500
Ω
Balance
Trim
OPA27
2
3
1
8
6
20pF
10k
Ω
1k
Ω
4.75k
Ω
Offset
Trim
4.75k
Ω
+V
CC
Input
TTL INPUT
“1”
“0”
GAIN
+1
–1



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