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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the role of small signal output resistance in current mirrors?
💡 Hint: Think about why stability in circuits is important.
Question 2
Easy
What does adding a cascode transistor do to the current mirror?
💡 Hint: Consider the effect on output current stability.
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 is the primary purpose of increasing small signal output resistance?
- To increase current draw
- To stabilize output current
- To reduce power consumption
💡 Hint: Think about circuit reliability.
Question 2
True or False: Adding a cascode transistor lowers the output resistance of a current mirror.
- True
- False
💡 Hint: Recall the effects of cascode configurations.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
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.
Challenge and get performance evaluation