Practice Observations And Readings (7) - DIFFERENTIAL AMPLIFIER AND BASIC OP-AMP GAIN STAGES
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OBSERVATIONS AND READINGS

Practice - OBSERVATIONS AND READINGS

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the primary function of a differential amplifier?

💡 Hint: Recall the definition we've discussed.

Question 2 Easy

What does CMRR stand for?

💡 Hint: Think about the performance measure related to differential amplifiers.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the purpose of a BJT differential amplifier?

To amplify a single input signal
To amplify the difference between two input signals
To measure current

💡 Hint: Think about its key function in reducing noise.

Question 2

True or False: A higher CMRR means better rejection of common-mode signals.

True
False

💡 Hint: Consider what a higher ratio signifies in signal processing.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a BJT differential amplifier circuit to achieve a differential gain of 50. List the components and their values.

💡 Hint: Start with the formula for differential gain and backtrack to find resistor values.

Challenge 2 Hard

Calculate the CMRR for an amplifier with a measured A_d of 40 and an A_cm of 2.

💡 Hint: Remember to use the CMRR formula and how to convert that to decibels.

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Reference links

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