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Internal Components of Op-Amps
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Which internal component of an operational amplifier (op-amp) is primarily responsible for increasing the input signal's amplitude before it reaches the output stage?

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Choose AnswerChoose the Best Answer

A

Gain stage

B

Output stage

C

Differential input stage

D

Feedback network

Understanding the Answer

Let's break down why this is correct

The gain stage is the first internal part of an op‑amp that receives the tiny input voltage. Other options are incorrect because A common mistake is to think the output stage does the amplification; Some people think the differential input stage boosts the signal.

Key Concepts

gain stage
output stage
Topic

Internal Components of Op-Amps

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medium level question

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Definition
Definition

Op-amps consist of multiple transistors that enable amplification and signal processing. The number of transistors varies by model, with typical op-amps containing several transistors to achieve the desired operational characteristics.

Topic Definition

Op-amps consist of multiple transistors that enable amplification and signal processing. The number of transistors varies by model, with typical op-amps containing several transistors to achieve the desired operational characteristics.

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