Hi Team,
We would like to ask your help regarding our customer's inquiry below.
How do you setup device pins to measure CMRR.
What is the two values of common mode input voltage which are used to test CMRR to get typical value?
What do you setup for VIN+, VIN- pin, VOCM pin? I know output measurements will be done as differential between VOUT+ and VOUT- pin.
The calculation will be CMRR= 20*log (change of Common mode input voltage)/(differential output).
Which is basically , CMRR = 20*log10( fabs((ours->VCM1 - ours->VCM2) / delta_vos)).
Regards,
Danilo
