WMS7201010S WINBOND [Winbond], WMS7201010S Datasheet - Page 21

• Manufacturer Part Number: WMS7201010S
• Description: 256-TAP NON-VOLATILE DIGITAL POTENTIOMETER
• Manufacturer: WINBOND [Winbond]

Resistor position nonlinearity error test
circuit (Rheostat Operation: R-INL, R-DNL)
Potentiometer divider nonlinearity error
test circuit (INL, DNL)
10.1 T
V
+
*Assume infinite input impedance
*Assume infinite input impedance
Wiper resistance test circuit
No Connection
*Assume infinite input impedance
EST
WMS7201
V
V
B
A
V
C
WMS7201
V
V
W
IRCUITS
B
A
V
V
WMS7201
V
A
B
V
V
W
MS
W
*
I
R
W
1LSB= V
V
W
+
= V
V
I
= V
W
= V
MS
DD
I
W
*
MS
DD
/R
/I
+
FIGURE 7 – TEST CIRCUITS
Total
W
/255
V
MS
*
Power supply sensitivity test circuit (PSS, PSRR)
- 21 -
OFFSET
V
~
W
+
GND
2.5V DC
V
IN
V
IN
Gain vs. frequency test circuit
*Assume infinite input impedance
~
Capacitance test circuit
V
V
V
2.5V DC
Offset
B
A
A
Publication Release Date: January 2003
WMS7201
V
WMS7201
W
V
V
WMS7201
PSRR(dB) = 20LOG (
PSS(%/% ) = ∆ V
V
A
V
V
B
+
W
W
= V
DD
± 10%
+5V
V
B
WMS7201
V
∆ V
+5V
MS
MS
DD
*
V
∆ V
∆ V
Revision 1.1
OUT
V
MS
DD
OUT
)