Practice Common Mode Rejection Enhancement (85.2.5) - Usage of current mirror (Part-C)
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Common Mode Rejection Enhancement

Practice - Common Mode Rejection Enhancement

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define common mode gain.

💡 Hint: Think about signals that affect both sides of the amplifier equally.

Question 2 Easy

What is a current mirror?

💡 Hint: It 'mirrors' current.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the main function of a current mirror in amplifier circuits?

To amplify the signal
To maintain a consistent current
To reduce signal distortion

💡 Hint: Focus on what is meant by 'mirroring'.

Question 2

True or False: Increasing common mode gain is beneficial for amplifier performance.

True
False

💡 Hint: Recall the relationship between input signals.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a differential amplifier with a low common mode gain and its transconductance specified, design a similar circuit with a current mirror. Identify potential challenges.

💡 Hint: Refer back to the current mirroring effects discussed.

Challenge 2 Hard

Assume a circuit yields incorrect biasing due to high common mode gain. Redesign it using calculations for ideal current mirror values.

💡 Hint: Use known relationships to recalculate.

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Reference links

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