Practice Numerical Examples - 77.2.7 | 77. Differential Amplifier : Analysis and Numerical Examples | Analog Electronic Circuits - Vol 4
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77.2.7 - Numerical Examples

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does a differential amplifier do?

💡 Hint: Think about how the amplifier processes two different inputs.

Question 2

Easy

Name the two modes of operation for a differential amplifier.

💡 Hint: Recall which mode amplifies differences versus identical signals.

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 a differential amplifier?

  • To amplify the average of two signals
  • To amplify the difference of two signals
  • To filter noise from signals

💡 Hint: Focus on what differentiates it from other amplifiers.

Question 2

True or False: The common mode gain should be maximized for optimal amplifier performance.

  • True
  • False

💡 Hint: Consider the implications of common signals.

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Challenge Problems

Push your limits with challenges.

Question 1

A differential amplifier has a transconductance gm of 4mS and a collector resistance Rc of 1.5k ohms. What is its differential mode gain? How would changing the collector resistance affect the output?

💡 Hint: Remember how resistance affects the gain calculations directly.

Question 2

Given a scenario where a common mode signal is around 1V while the differential signal is 0.5V, analyze the performance of a differential amplifier with significant common mode gain.

💡 Hint: Consider the implications of high common mode gain affecting overall signal clarity.

Challenge and get performance evaluation