Question
What kind of device is an integrated circuit operational amplifier?
Answer Options
- A) Digital
- B) MMIC
- C) Programmable Logic
- D) Analog
Correct Answer: D
Explanation
An operational amplifier (Op-Amp) is a differential amplifier circuit that is designed to amplify the difference between two input voltages. Op-Amps are typically built using integrated circuits (ICs) and are employed in a huge variety of signal processing applications.
Because they deal with continuously varying voltages and currents (as opposed to discrete on/off states), an integrated circuit operational amplifier is an Analog device. Op-Amps form the foundation of many analog circuits, including filters, comparators, buffers, and audio amplifiers.
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