OPA373_16 Datasheet, PDF (12/37 Pages) Texas Instruments – CMOS Operational Amplifier

OPA373, OPA2373
OPA374
OPA2374, OPA4374
SBOS279E − SEPTEMBER 2003 − REVISED MAY 2008
5kΩ
V_IN
330pF
5kΩ
OPA373
V_S
2
+5V
0.1µF
0.1µF
500kΩ
8 V+
1 V_REF
7
DCLOCK
+IN
ADS7816
6
2
−IN
12− Bit ADC
D_OUT
CS/SHDN
5
3300pF
3
GND 4
www.ti.com
Serial
Interface
NOTE: ADC Input = 0 to V_REF
Figure 9. The OPA373 in Inverting Configuration Driving the ADS7816
R₁
11.7kΩ
1/2
OPA373
C₁
680pF
R₂
2.72kΩ
C₃
330pF
R₃
21.4kΩ
C₂
330pF
1/2
OPA373
NOTE: FilterPro is a low-pass filter design program available for download at
no cost from TI’s web site (www.ti.com). The program can be used to determine
component values for other cutoff frequencies or filter types.
Figure 10. Three-Pole Sallen-Key Butterworth Low-Pass Filter
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