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Op-Amp Gain and Practical Considerations
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In an operational amplifier circuit, which of the following statements accurately describes the relationship between common-mode rejection ratio (CMRR), power supply rejection ratio (PSRR), and non-linear distortion when designing for high precision applications?

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A

A high CMRR can compensate for low PSRR, reducing non-linear distortion.

B

High PSRR guarantees low non-linear distortion regardless of CMRR.

C

Both high CMRR and high PSRR are essential to minimize non-linear distortion in precision applications.

D

Low CMRR is preferable to ensure better PSRR and reduce non-linear distortion.

Understanding the Answer

Let's break down why this is correct

A good op‑amp needs both high CMRR and high PSRR. Other options are incorrect because The idea that a strong CMRR can make up for a weak PSRR is a mix‑up; Thinking PSRR alone guarantees low distortion ignores common‑mode errors.

Key Concepts

Common-mode rejection ratio (CMRR)
Power supply rejection ratio (PSRR)
Non-linear distortion
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Op-Amp Gain and Practical Considerations

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hard level question

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Definition
Definition

While op-amps do not have infinite gain in practice, their high gain allows for reliable circuit design using negative feedback. Op-amp gain specifications vary between models, and practical op-amp circuits rely on predictable gain behavior.

Topic Definition

While op-amps do not have infinite gain in practice, their high gain allows for reliable circuit design using negative feedback. Op-amp gain specifications vary between models, and practical op-amp circuits rely on predictable gain behavior.

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