Differential Amplifier and Its Theory (With Circuit Diagrams) | Electronics

The differential amplifier, abbreviated as DIFF AMP, is the basic stage of an integrated OP AMP with differential input. Its design is, therefore, mainly related to IC fabrication techniques. However, employing discrete components it is also used in some circuits. Generally, the function of a differential amplifier is to amplify the difference of two signals. Fig. 4.7(a) shows a linear [...]