Advantages of Negative Feedback Amplifier
1. Gain Stability: The voltage gain of an amplifier with negative feedback is given as A f = A/(1 + Aβ). If Aβ >> 1 then the expression becomes A f = 1/β i.e., overall gain of feedback amplifier A f is independent of internal gain and depends only on feedback ratio β, and β in turn depends on the passive elements such as resistors. Resistors remain fairly constant …