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Operation Amplifiers

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What is the concept behind operational amplifiers, or op-amps? What is the ideal model and the practical model of an op-amp? Give examples of the applications of op-amps.

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This posting contains solution to the given questions regarding operational amplifiers, explaining the concept behind the and the ideal/practical models.

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An operational amplifier, or op-amp, is an electronic device that can perform mathematical operations of electronic signals, hence the name of the device. It consists of a differential amplifier that gets the difference between its two input terminals and amplifies them, and a signal driver that provides power to the differential signal to send it to its output terminal. Because of its ability to perform mathematical operations of signals with less ...

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