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WMS7204 Arkusz danych(PDF) 23 Page - Winbond

Numer części WMS7204
Szczegółowy opis  256-TAP QUAD-CHANNEL NON-VOLATILE DIGITAL POTENTIOMETER
PDF  32 Pages
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Producent  WINBOND [Winbond]
Strona internetowa  http://www.winbond.com
Logo WINBOND - Winbond

WMS7204 Arkusz danych(HTML) 23 Page - Winbond

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WMS7204
Publication Release Date: January 2003
- 23 -
Revision 1.0
10.1 TEST CIRCUITS
FIGURE 7 – TEST CIRCUITS
Potentiometer divider nonlinearity error
test circuit (INL, DNL)
*Assume infinite input impedance
V+
VMS*
V+ = VDD
1LSB= V+/255
WMS7204
VA
VB
VW
Resistor position nonlinearity error test
circuit (Rheostat Operation: R-INL, R-DNL)
*Assume infinite input impedance
No Connection
VMS*
WMS7204
W
VA
VB
VW
IW
WMS7204
Wiper resistance test circuit
*Assume infinite input impedance
VMS*
WMS7204
VA
VB
VW
IW
IW = VDD/RTotal
RW = VMS/IW
Power supply sensitivity test circuit (PSS, PSRR)
*Assume infinite input impedance
V+
V+ = VDD±10%
VA
VB
VW
VMS*
PSRR(dB) = 20LOG(
)
∆VMS
∆VDD
PSS(%/%) = ∆VMS
∆VDD
WMS7204
VA
VB
VW
VIN
~
+5V
2.5V DC
Offset
VOUT
Capacitance test circuit
VA
VB
WMS7204
VW
VIN
~
+5V
2.5V DC
VOUT
OFFSET
GND
Gain vs. frequency test circuit



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