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AD5933 rfb and rcal config

Question asked by i2cusb on Jun 9, 2015
Latest reply on Dec 1, 2016 by musach

Hi all,

      i have a doubt,please help me,

    1. My rfb=100ohm, rcal=27ohm

    i am getting the zmin as 80ohm and zmax=1ohm, is this correct??? is there any conditions???

    my f=30k,pga gain=1,vdd=3.3,range=1.

   

    2.when am setting rfb=100ohm and rcal=0

    i am getting the zo=min as 80ohm and zmax=-80ohm. WHAT IS THE MINIMUMVALUE I CAN SET FOR RFB AND RCAL FOR IMBEDANCE MEASUREMENT FOR RANGE 1K TO 10M.

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