An operational amplifier is designed to be linked to other circuits in order to conduct a wide range of activities. This article gives some examples of how to use operational amplifiers in circuits. When an operational amplifier is coupled with an amplification circuit, it is capable of converting weak signals into powerful ones. It functions similarly to a megaphone, with the input signal being a person's voice and the megaphone being the operating amplifier circuit. A circuit like this can be used to enhance minute sensor signals. The operational amplifier circuit extracts the signal with the target frequency by acting as a filter of input signals. A zero drift amplifier is a type of operational amplifier that reduces input offset voltage and input offset voltage drift (0). For applications that need high-accuracy signal amplification, using a zero-drift operational amplifier is a very effective choice.

Arundathi Kuttappan

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