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OPA347SA/3K Datasheet(PDF) 10 Page - Texas Instruments

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Part # OPA347SA/3K
Description  microPower, Rail-to-Rail Operational Amplifiers
PDF  21 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

OPA347SA/3K Datasheet(HTML) 10 Page - Texas Instruments

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OPA347, 2347, 4347
10
SBOS167C
www.ti.com
FIGURE 8. OPA347 in Noninverting Configuration Driving ADS7822.
FIGURE 9. Speech Bandpass Filtered Data Acquisition System.
ADS7822
12-Bit ADC
DCLOCK
D
OUT
CS/SHDN
OPA347
+5V
V
IN
V+
2
+In
3
–In
V
REF
8
4
GND
Serial
Interface
1
0.1
µF
0.1
µF
7
6
5
NOTE: ADC Input = 0V to V
REF
V
IN = 0V to 5V for
0V to 5V output.
RC network filters high-frequency noise.
500
Ω
3300pF
C
3
33pF
V+
GND
3
1
8
4
5
6
7
–IN
+IN
2
DCLOCK
Serial
Interface
C
2
1000pF
R
1
1.5k
Ω
R
4
20k
Ω
R
5
20k
Ω
R
6
100k
Ω
R
8
150k
Ω
R
9
510k
Ω
R
7
51k
Ω
D
OUT
V
REF
V+ = +2.7V to 5V
CS/SHDN
C1
1000pF
Electret
Microphone(1)
G = 100
Passband 300Hz to 3kHz
R
3
1M
Ω
R
2
1M
Ω
NOTE: (1) Electret microphone
powered by R
1.
ADS7822
12-Bit A/D
1/2
OPA2347
1/2
OPA2347



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