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Digital Pot Configuration with 3.3V Host Device

Question asked by ETRX on Jun 23, 2017
Latest reply on Jun 28, 2017 by rrosario

I am configuring AD5263 with 3.3V powered Spartan VI FPGA. Schematics as shown:

 

DigiPot

Since Host device is 3.3V , Vlogic =3.3V (3v3 in schematics)

DigiPot is used for Op-Amp Gain Adjustment and Op-Amp operating on ± 12V.

Vdd = +12V

Vss = -12V

No of Op-Amps = 4 ( All 4 ch. pots used)

 

Is this configuration correct? Please suggest.

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