Practice Basic Operation And Circuit Structure (4.1.1) - DIFFERENTIAL AMPLIFIER AND BASIC OP-AMP GAIN STAGES
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Basic Operation and Circuit Structure

Practice - Basic Operation and Circuit Structure

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the main function of a BJT differential amplifier?

💡 Hint: Think about how it processes input signals.

Question 2 Easy

Define Common Mode Rejection Ratio (CMRR).

💡 Hint: Consider its importance in signal processing.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the preferred output configuration for measuring gain in a BJT differential amplifier?

Single-ended
Differential
Common-mode

💡 Hint: Think about the output options you have.

Question 2

True or False: A common-mode gain should ideally be high for a differential amplifier to function correctly.

True
False

💡 Hint: Reflect on the purpose of differential amplifiers.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

You design a differential amplifier with a desired CMRR of 80 dB. If the differential voltage gain is measured at 100, calculate the common-mode gain.

💡 Hint: Use the CMRR formula given earlier.

Challenge 2 Hard

For a BJT differential amplifier employing a resistor as a current source, derive the common-mode gain if both transistors are perfectly matched.

💡 Hint: Work through the derivation from the paragraph on common-mode gain.

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Reference links

Supplementary resources to enhance your learning experience.