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2 cards from this section. Quick, good the night before a test.
What is a current mirror?
Think about how currents can be maintained in different parts of a circuit.
What are the two key components of a simple current mirror?
Recall the basic building blocks we discussed.
What does a current mirror do?
Think about the definition we reviewed.
True or False: A current mirror can only be constructed using BJTs.
Recall the discussion about current mirror types.
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.
Use the non-ideality formula to find the final current.
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.
Remember how the K factors influence output scaling.
4 more questions in this section. Enroll free to practise them all.
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