85.3 - Common Mode and Differential Mode Gain
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Practice Questions
Test your understanding with targeted questions
What does a differential amplifier do?
💡 Hint: Think of it as focusing on the specific difference between the inputs.
Define common mode gain.
💡 Hint: Common means the same on both sides.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does common mode gain represent in a differential amplifier?
💡 Hint: Look for the term 'common' in the definition.
True or False: A higher Common Mode Rejection Ratio (CMRR) indicates a more effective amplifier.
💡 Hint: Think about the relationship between amplification and noise rejection.
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Challenge Problems
Push your limits with advanced challenges
Analyze a differential amplifier circuit with BJTs and determine the CMRR given specific common and differential mode gains. How does this affect your design considerations?
💡 Hint: Assess how the input signal impacts each gain type.
Create a schematic of a differential amplifier using MOSFETs with an active load. Calculate the expected gains.
💡 Hint: Pay attention to how active loads influence the output characteristics.
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