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OPA2374AIDG4 Datasheet, PDF (12/37 Pages) Texas Instruments – 6.5MHz, 585muA, Rail-to-Rail I/O CMOS Operational Amplifier | |||
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OPA373, OPA2373
OPA374
OPA2374, OPA4374
SBOS279E â SEPTEMBER 2003 â REVISED MAY 2008
5kâ¦
VIN
330pF
5kâ¦
OPA373
VS
2
+5V
0.1µF
0.1µF
500kâ¦
8 V+
1 VREF
7
DCLOCK
+IN
ADS7816
6
2
âIN
12â Bit ADC
DOUT
CS/SHDN
5
3300pF
3
GND 4
www.ti.com
Serial
Interface
NOTE: ADC Input = 0 to VREF
Figure 9. The OPA373 in Inverting Configuration Driving the ADS7816
R1
11.7kâ¦
1/2
OPA373
C1
680pF
R2
2.72kâ¦
C3
330pF
R3
21.4kâ¦
C2
330pF
1/2
OPA373
NOTE: FilterPro is a low-pass filter design program available for download at
no cost from TIâs 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
12
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