Datasheet

OPA 627
GND
GND
GND
GND
GND
Pin1
Pin 7
−
Pin 2
+
Pin3
Pin4
Pin 6
−15V
+15 V
Vin
2.2 mF
100 nF
2 kW
22 pF
2 kW
22 pF
200 W
100 W
33.2 kW
2.2 mF
2.2 mF
100 nF
2.2 mF
R1
IN
AGND1
R2
IN
R3
IN
CAP
REF
ADS8509
OPA 132
or
AGND2
DGND
GND
ADS8509
www.ti.com SLAS324C –OCTOBER 2004–REVISED APRIL 2010
The external reference voltage can vary from 2.3 V to 2.7 V. The reference voltage determines the size of the
least significant bit (LSB). The larger reference voltages produce a larger LSB, which can improve SNR. Smaller
reference voltages can degrade SNR.
Figure 28. Typical Driving Circuitry (±10 V, No Trim)
Copyright © 2004–2010, Texas Instruments Incorporated 19
Product Folder Link(s): ADS8509