chapter  10
16 Pages

Feedback and Operational Amplifiers

In contrast, negative feedback, in which a portion of the output signal is subtracted from the input signal, can be quite beneficial. The gain of an amplifier is reduced by negative feedback, but the overall performance in terms of fidelity and stability is greatly improved. In this chapter, you will learn how negative feedback is used in the design of circuits in which operational amplifiers are employed, and you will find that many useful amplifier circuits can be made by using this method.