87.4.1 - Small Signal Output Resistance
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Practice Questions
Test your understanding with targeted questions
What is the role of small signal output resistance in current mirrors?
💡 Hint: Think about why stability in circuits is important.
What does adding a cascode transistor do to the current mirror?
💡 Hint: Consider the effect on output current stability.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary purpose of increasing small signal output resistance?
💡 Hint: Think about circuit reliability.
True or False: Adding a cascode transistor lowers the output resistance of a current mirror.
💡 Hint: Recall the effects of cascode configurations.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Design a cascode current mirror circuit that allows a constant output current of 1 mA despite a varying output voltage (assume a supply voltage of 15V). What are the required component values?
💡 Hint: Research transistor datasheets for g_m values and work through your saturation voltage requirements.
Given a BJT with an early voltage of 100V and a specified bias current, how will you calculate the output resistance? Demonstrate your calculations.
💡 Hint: Consider both the transistor parameters and your circuit configuration.
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