Practice Simple Current Mirror with MOSFET - 86.2.1 | 86. Numerical examples on current mirror and its applications (Part-A) | Analog Electronic Circuits - Vol 4
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is a current mirror?

πŸ’‘ 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?

πŸ’‘ 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

πŸ’‘ Hint: Think about the definition we reviewed.

Question 2

True or False: A current mirror can only be constructed using BJTs.

  • True
  • False

πŸ’‘ 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.

πŸ’‘ 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.

πŸ’‘ Hint: Remember how the K factors influence output scaling.

Challenge and get performance evaluation