Find output voltage of differential amplifier having differential gain of 100 and common mode gain 0.1 if input voltages are v1=2+0.55sinwt and v2=0.5-0.005sinwt
The Attempt at a Solution
well, from sedra smith book i found the formula for output book
if i have to subtract two AC signals with dc offsets i get v1-v2= 1.5+0.55sinwt am i correct?
so can right it as 2.11sinwt
again for Acm i have to take average of two signals which will be 1.25+0.272sinwt
i have to divide it by 2 hence it becomes 1.522sinwt
the final ans i am getting is 211.15sinwt am i correct?