71.2.4 - Dangers of Common Mode Signals
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is a common mode signal?
💡 Hint: Think about how it might affect the output signal.
Define differential mode gain.
💡 Hint: How does this relate to effective amplification?
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the ideal value for common mode gain in a differential amplifier?
💡 Hint: Recall why we want to keep noise low.
True or False: Differential signals are unwanted in a differential amplifier.
💡 Hint: Think about what we aim to amplify.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Given a differential amplifier with a differential mode gain of 50, a common mode gain of 0.1, and input voltages of 2V (differential) and 10V (common mode), calculate the output voltage.
💡 Hint: Apply the gains to each signal input.
If common mode signals are affecting outputs significantly, what design changes would you implement to minimize their impact?
💡 Hint: Think about component selection and circuit layout.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.