Digital Applications of Operational Amplifiers

The op-amp has so many functional applications that it shows up as part of the supporting cast in many types of circuits. Some of the applications in digital circuits are

• An op-amp comparator is used in most analog-to-digital converters .
• An op-amp voltage follower can be used as a buffer in logic circuits.
• An op-amp inverting amplifier can be used as an inverting buffer in logic circuits.