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OPA2343EA Datasheet, PDF (10/16 Pages) Texas Instruments – SINGLE-SUPPLY, RAIL-TO-RAIL OPERATIONAL AMPLIFIERS microAmplifier Series | |||
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For improved accuracy use OPA340.
+5V
0.1µF
0.1µF
VIN
VIN = 0V to 5V for
0V to 5V output.
OPA343
500â¦
3300pF
8 V+
+In
2
âIn
3
ADS7816
12-Bit A/D
GND 4
RC network filters high frequency noise.
FIGURE 5. OPA343 in Noninverting Configuration Driving ADS7816.
1 VREF
7
DCLOCK
6
DOUT
5
CS/SHDN
Serial
Interface
NOTE: A/D Input = 0 to VREF
For improved accuracy use OPA340.
5kâ¦
VIN
330pF
5kâ¦
OPA343
+5V
0.1µF
0.1µF
8 V+
+In
2
âIn
3
ADS7816
12-Bit A/D
GND 4
1 VREF
7
DCLOCK
6
DOUT
5
CS/SHDN
Serial
Interface
VIN = 0V to â5V for 0V to 5V output.
FIGURE 6. OPA343 in Inverting Configuration Driving ADS7816.
+5V
NOTE: A/D Input = 0 to VREF
Filters 160Hz to 2.4kHz
VIN
200pF
10Mâ¦
10Mâ¦
1/2
OPA2343
243kâ¦
1.74Mâ¦
47pF
1/2
OPA2343
RL
220pF
FIGURE 7. Speech Bandpass Filter.
<1pF (prevents gain peaking)
10Mâ¦
+V
λ
OPA343
VO
FIGURE 8. Transimpedance Amplifier.
10
OPA343, 2343, 4343
SBOS090A
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