The Integrated Circuits (ICs) category includes various types of circuits such as linear amplifiers, instrumentation amplifiers, operational amplifiers (OP Amps), and buffer amplifiers.
Operational amplifiers (OP Amps) are used to amplify voltage signals, perform mathematical operations such as addition, subtraction, integration, and differentiation, and are essential in signal processing applications.
Buffer amplifiers, also known as voltage followers, provide high input impedance and low output impedance, allowing them to isolate different stages of a circuit without loading the previous stage, unlike other amplifiers that may amplify the signal further.