Practice Simple Bjt Current Mirror Circuit (6.3) - Design and Characterization of Oscillators and Current Mirrors
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Simple BJT Current Mirror Circuit

Practice - Simple BJT Current Mirror Circuit

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the primary function of a simple BJT current mirror?

💡 Hint: Think about what current mirrors do.

Question 2 Easy

What does IREF stand for in the current mirror context?

💡 Hint: It is the current that establishes the operational point.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the purpose of a simple BJT current mirror?

To amplify signals
To replicate current
To reduce noise

💡 Hint: Focus on the replication aspect.

Question 2

True or False: The output current IOUT is always equal to IREF in a current mirror.

True
False

💡 Hint: Think about the limitations within the current mirror design.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a current mirror circuit to deliver a 2 mA output current with a reference voltage of 15V and a reference resistor chosen from standard E12 series resistors.

💡 Hint: Start with calculating the voltage after taking into account the base-emitter voltage drop.

Challenge 2 Hard

If the Early voltage (VA) of the transistors in your current mirror is determined to be 100V, how would you explain the impact of this value on the output resistance Rout?

💡 Hint: Consider how VA plays a role in output stability.

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Reference links

Supplementary resources to enhance your learning experience.