75.3.2 - Common Mode Gain and Differential Mode Gain
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Practice Questions
Test your understanding with targeted questions
What is the definition of differential mode gain?
💡 Hint: It relates to the input signals' opposition.
What should the ideal common mode gain be?
💡 Hint: Think about noise rejection.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the main function of a differential amplifier?
💡 Hint: Focus on the word 'difference'.
True or False: Common mode gain should be maximized for better performance.
💡 Hint: Remember desired amplifier properties.
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Challenge Problems
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Design a differential amplifier circuit using BJTs and calculate its expected differential and common mode gain based on specific resistor and input values.
💡 Hint: Focus on input-output relationships.
Given a common mode gain of 1.5 and a differential mode gain of 25, what is the common mode rejection ratio (CMRR)?
💡 Hint: Look for the ratio of gains.
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