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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a current mirror?
💡 Hint: Think about how currents can be maintained in different parts of a circuit.
Question 2
Easy
What are the two key components of a simple current mirror?
💡 Hint: Recall the basic building blocks we discussed.
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 a current mirror do?
- A replicates voltage
- B replicates current
- C stores energy
💡 Hint: Think about the definition we reviewed.
Question 2
True or False: A current mirror can only be constructed using BJTs.
- True
- False
💡 Hint: Recall the discussion about current mirror types.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the output current in a simple MOSFET current mirror when the reference current I_REF is 0.5 mA, with K1 = 1 mA/V² and K2 = 4 mA/V². Include effects of channel length modulation with λ = 0.02 V⁻¹.
💡 Hint: Use the non-ideality formula to find the final current.
Question 2
What happens to the output current if one of the MOSFETs in a current mirror has a far lower K factor? Discuss its impact on the overall current replication ability.
💡 Hint: Remember how the K factors influence output scaling.
Challenge and get performance evaluation