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.