Datasheet

OPA343, 2343, 4343
10
SBOS090A
FIGURE 8. Transimpedance Amplifier.
FIGURE 5. OPA343 in Noninverting Configuration Driving ADS7816.
FIGURE 7. Speech Bandpass Filter.
FIGURE 6. OPA343 in Inverting Configuration Driving ADS7816.
ADS7816
12-Bit A/D
DCLOCK
D
OUT
CS/SHDN
OPA343
+5V
For improved accuracy use OPA340.
V
IN
V+
2
+In
3
–In
V
REF
8
4GND
Serial
Interface
1
0.1µF 0.1µF
7
6
5
NOTE: A/D Input = 0 to V
REF
V
IN
= 0V to 5V for
0V to 5V output.
RC network filters high frequency noise.
500Ω
3300pF
ADS7816
12-Bit A/D
DCLOCK
D
OUT
CS/SHDN
OPA343
+5V
For improved accuracy use OPA340.
V
IN
V+
2
+In
3
–In
V
REF
8
4GND
Serial
Interface
1
0.1µF 0.1µF
7
6
5
NOTE: A/D Input = 0 to V
REF
5kΩ5kΩ
330pF
V
IN
= 0V to –5V for 0V to 5V output.
243kΩ
10MΩ
10MΩ
1.74MΩ
220pF
47pF
200pF
1/2
OPA2343
+5V
V
IN
R
L
1/2
OPA2343
Filters 160Hz to 2.4kHz
OPA343
V
O
10MΩ
<1pF (prevents gain peaking)
+V
λ