81.1.5 - Small signal model of current mirror
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Practice Questions
Test your understanding with targeted questions
What is the primary purpose of a current mirror?
💡 Hint: Consider what kind of stability is necessary in amplifiers.
Name two critical characteristics of current mirrors.
💡 Hint: What does a high output impedance help achieve?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the main feature of a current mirror?
💡 Hint: Think about what current mirrors are often used for in circuits.
True or False: Current mirrors always have low output impedance.
💡 Hint: What does low output impedance imply about the circuit performance?
1 more question available
Challenge Problems
Push your limits with advanced challenges
Design a current mirror circuit that maintains a bias current of 150 μA with an average output impedance of 100 kΩ. Discuss the choice of components.
💡 Hint: Think about both BJT and MOS configurations.
Given a scenario where the supply voltage fluctuates, assess the impact on current mirror performance and how to mitigate these effects.
💡 Hint: Consider redundancy and thermal stability options.
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