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OPA111 Datasheet(PDF) 12 Page - Texas Instruments

Part # OPA111
Description  OPERATIONAL AMPLIFIER
PDF  14 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

OPA111 Datasheet(HTML) 12 Page - Texas Instruments

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12
OPA111
®
FIGURE 17. FET Input Instrumentation Amplifier.
6
2
3
OPA111
OPA111
Burr-Brown
INA105
Differential Amplifier
25k
Ω
25k
Ω
25k
Ω
25k
Ω
Output
6
5
1
3
2
+In
6
3
2
R
F
5k
Ω
R
F
5k
Ω
–In
R
G
101
Ω
Differential Voltage Gain = 1 + 2R
F/RG
I
B = 1pA
Gain = 100
CMRR
≈ 106dB
R
IN = 10
13
Ω
FIGURE 18. Low-Droop Positive Peak Detector.
OPA111
2
3
6
Output
8
0.01µF
Polystyrene
IN914*
2N4117*
*Reverse polarity for
negative peak detection.
1M
Ω
10k
Ω
IN914*
≈10pF
3507J
2
3
6
8
30pF
Input
Droop
≈ 100µV/s



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