Operational Amplifiers: Comparators and Differential Amplifiers

This lecture covers the operation of operational amplifiers as comparators and differential amplifiers. It explains how an operational amplifier can function as a simple comparator and the characteristics optimized for comparison. The lecture also delves into the concept of differential amplifiers, their applications, and the analysis of their general cases. Additionally, it discusses the principle of positive feedback in operational amplifiers and the behavior of the output signal in response to changes in the input signal. The content includes detailed examples and theoretical explanations to provide a comprehensive understanding of these fundamental electronic circuits.