arnabbiswas_ece
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i want to calculate/measure differential output and gain of a simple differential amplifier.i am using HSPICE and cosmos-scope.i have given +0.5v to one input and -0.5v to other input.i am varying the inputs,one from 0 to 1v and another from -1 to 0v.but i have doubt if it is correct or not.because both inputs should vary simultaneously but HSPICE generates different plot file for two vary.in one file only one is varying and other one is fixed. and in other file vice versa.and i don't know how to measure differential output and gain.