To provide its unique characteristics to...

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Question 1 of 205eccefa5bacbc34ba4d486ae

To provide its unique characteristics to analog circuits, the operational amplifier is made up of certain amplifier sections. Which of the following sequences represents the proper sequence of amplifier sections?

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🔍 Key Concepts

• Operational amplifier internal structure (input / intermediate / output stages) • Role of a differential amplifier at the input of an op-amp • How the voltage gain stage and output stage differ in purpose (high gain vs driving load)

💭 Think About

• Which type of amplifier stage is best suited to compare two input signals and reject common-mode noise? • After the tiny difference between the two inputs is detected, what kind of stage is needed next to greatly increase (amplify) that voltage? • Finally, what type of stage is used to supply enough current to drive an external load, such as a speaker or another circuit?

✅ Before You Answer

• Identify which option starts with a stage that can handle two inputs and common‑mode rejection. • Check which middle stage is responsible for providing very high voltage gain, not power to the load. • Confirm that the last stage listed is designed as an output (power/current‑driving) stage that can feed the external circuit.

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