wms7121100s Winbond Electronics Corp America, wms7121100s Datasheet - Page 15

• Manufacturer Part Number: wms7121100s
• Description: Mixed Signal Winpot Digital Potentiomemter
• Manufacturer: Winbond Electronics Corp America

11. TYPICAL APPLICATION CIRCUITS
FIGURE 6 – PROGRAMMABLE NON-INVERTING GAIN AMPLIFIER USING THE WMS7120/7121
FIGURE 5 – PROGRAMMABLE INVERTING GAIN AMPLIFIER USING THE WMS7120/7121
V
R
R
W = Wiper setting for WMS71XX
V
R
R
W = Wiper setting for WMS71XX
OUT
OUT
A
AB
A
AB
=
=
= Total resistance of potentiometer
= Total resistance of potentiometer
= - V
= V
R
R
AB
AB
IN
(64-W)
(64-W)
64
64
IN
(1+
R
R
R
R
B
A
B
A
WMS71XX
, R
, R
Vin
V
)
IN
B
B
=
=
R
R
R
64
64
AB
AB
R
A
A
*W
*W
WMS71XX
R
R
B
B
+
+
_
_
- 15 -
OP
AMP
OP
AMP
V
V
OUT
OUT
Publication Release Date: July 2003
WMS7120 / 7121
Revision 1.0