Practice Small Signal Equivalent Circuit Analysis - 78.2.2 | 78. Differential Amplifier : Analysis and Numerical Examples (Contd.) | Analog Electronic Circuits - Vol 4
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define common mode signal.

πŸ’‘ Hint: Think about how identical signals affect the output.

Question 2

Easy

What does differential mode signal refer to?

πŸ’‘ Hint: Consider one signal being positive and the other negative.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the main purpose of common mode analysis?

  • To amplify differential signals
  • To understand the effects of identical signals
  • To calculate output voltage

πŸ’‘ Hint: Think about what we learned regarding unwanted noise.

Question 2

True or False: The differential gain is independent of common mode signals.

  • True
  • False

πŸ’‘ Hint: Consider the definitions of both gains.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given a differential amplifier with resistors that are not equal, derive an expression for the output voltage when both a common mode and differential signal are applied.

πŸ’‘ Hint: You may need to consider the resistor effects on the overall gain.

Question 2

Evaluate the effects of common mode rejection ratio (CMRR) on the overall functionality of an amplifier if the CMRR is low.

πŸ’‘ Hint: Look back at the definitions and principles you learned regarding signal integrity.

Challenge and get performance evaluation