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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the purpose of a differential amplifier?
💡 Hint: Think about its role in noise rejection.
Question 2
Easy
Define CMRR.
💡 Hint: It measures how well the amplifier rejects noise simultaneously present on both inputs.
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 does CMRR stand for?
- Common-Mode Reduction Ratio
- Common-Mode Rejection Ratio
- Current Management Ratio
💡 Hint: It measures performance in terms of noise rejection.
Question 2
True or False: Increasing the tail current will always improve the output gain of the op-amp.
- True
- False
💡 Hint: Balance performance with power considerations.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design an input stage of an op-amp with the following specifications: Ad = 200, Target CMRR_dB = 80, I_tail = 400 microamperes. How do you calculate the required RC and RE_effective?
💡 Hint: Keep track of whether your calculations require single-ended or differential output considerations.
Question 2
Given a circuit with a high-frequency pole frequency, strategize how to implement compensation to maintain stability. Discuss potential techniques.
💡 Hint: Think about how each alternative impacts phase and gain.
Challenge and get performance evaluation