70.4.2.2 - Common Mode and Differential Mode Components
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Practice Questions
Test your understanding with targeted questions
What is a single-ended amplifier?
💡 Hint: Think about the reference point it uses.
Define common mode signal.
💡 Hint: What does 'common' suggest about the signal?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What term describes the portion of the signal that is common to both inputs?
💡 Hint: The shared signal is not the differential aspect!
True or False: A differential amplifier has one signal input.
💡 Hint: Think about how many inputs are used!
1 more question available
Challenge Problems
Push your limits with advanced challenges
A differential amplifier receives two voltages, V1 = 5V and V2 = 3V. Calculate the output for a gain of 10.
💡 Hint: Remember the formula for output voltage in terms of gain and input difference.
Describe how a common mode rejection ratio (CMRR) can be derived from the gains of differential and common-mode signals.
💡 Hint: Think about what kind of signals the amplifier boosts versus rejects!
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