Practice Common Mode Rejection Ratio (cmrr) (4.1.5) - DIFFERENTIAL AMPLIFIER AND BASIC OP-AMP GAIN STAGES
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Common Mode Rejection Ratio (CMRR)

Practice - Common Mode Rejection Ratio (CMRR)

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does CMRR stand for?

💡 Hint: Think about the purpose of the amplifier in rejecting signals.

Question 2 Easy

What are the two gains involved in CMRR?

💡 Hint: One gain is about the difference between signals.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does CMRR measure?

The total gain of an amplifier
The ratio of differential to common-mode gain
The efficiency of an amplifier

💡 Hint: Consider what CMRR is used for in signal processing.

Question 2

Is a higher CMRR desirable?

True
False

💡 Hint: Think about the goal of designing amplifiers.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

If an amplifier has a differential gain of -50 dB and a common-mode gain of -0.05 dB, calculate the CMRR and explain the implications of the result in a noisy environment.

💡 Hint: Be careful with the signs when performing logarithmic calculations!

Challenge 2 Hard

Discuss how circuit design can improve effective CMRR in a differential amplifier. Include examples of components or configurations.

💡 Hint: Consider what types of imperfections can affect amplifier performance.

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Reference links

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