INA823_non_linear_behavior.TSC
Firstly i admit i may have missed something in the data sheet but.....
supply voltage 3.3
input common mode voltage = 1v
Vref =0v
Rg=20K => Av=6
differential signal ramp from 0 --> 0.4v
Problem: Vout show excessive non linearity when Vin[diff]>133mv [vout>798], gain slope changes
circuit model attached.