OPA2343EA-2K5 Datasheet, PDF (10/16 Pages) Texas Instruments – SINGLE-SUPPLY, RAIL-TO-RAIL OPERATIONAL AMPLIFIERS microAmplifier ™ Series

For improved accuracy use OPA340.
+5V
0.1µF
0.1µF
V_IN
V_IN = 0V to 5V for
0V to 5V output.
OPA343
500Ω
3300pF
8 V+
+In
2
–In
3
ADS7816
12-Bit A/D
GND 4
RC network filters high frequency noise.
FIGURE 5. OPA343 in Noninverting Configuration Driving ADS7816.
1 V_REF
7
DCLOCK
6
D_OUT
5
CS/SHDN
Serial
Interface
NOTE: A/D Input = 0 to V_REF
For improved accuracy use OPA340.
5kΩ
V_IN
330pF
5kΩ
OPA343
+5V
0.1µF
0.1µF
8 V+
+In
2
–In
3
ADS7816
12-Bit A/D
GND 4
1 V_REF
7
DCLOCK
6
D_OUT
5
CS/SHDN
Serial
Interface
V_IN = 0V to –5V for 0V to 5V output.
FIGURE 6. OPA343 in Inverting Configuration Driving ADS7816.
+5V
NOTE: A/D Input = 0 to V_REF
Filters 160Hz to 2.4kHz
V_IN
200pF
10MΩ
10MΩ
1/2
OPA2343
243kΩ
1.74MΩ
47pF
1/2
OPA2343
R_L
220pF
FIGURE 7. Speech Bandpass Filter.
<1pF (prevents gain peaking)
10MΩ
+V
λ
OPA343
V_O
FIGURE 8. Transimpedance Amplifier.
10
OPA343, 2343, 4343
SBOS090A