pnsakanjankumar
Member level 2
How we calculate CMRR?
In my lab I used feedback resistor to calculate Common Mode Gain and i got Ac=0.34 and i didn't calculate differential gain.I took Ad=10^5 from the data sheet and therefore I calculated CMRR=10^5/.34 is it right?
but someone said to use feed back gain as Ad.
which is right?
please help me
In my lab I used feedback resistor to calculate Common Mode Gain and i got Ac=0.34 and i didn't calculate differential gain.I took Ad=10^5 from the data sheet and therefore I calculated CMRR=10^5/.34 is it right?
but someone said to use feed back gain as Ad.
which is right?
please help me