Practice DC and Small Signal Analysis - 87.6.2 | 87. Numerical examples on current mirror and its applications (Part-B) | Analog Electronic Circuits - Vol 4
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87.6.2 - DC and Small Signal Analysis

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the primary function of a current mirror?

💡 Hint: Think about the purpose of mirroring currents.

Question 2

Easy

What is a cascode transistor?

💡 Hint: Consider its placement in a circuit.

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 main advantage of using a cascode transistor in a current mirror?

  • A. Increase bandwidth
  • B. Increase output resistance
  • C. Decrease power consumption

💡 Hint: Think about the role of cascode in stabilizing circuits.

Question 2

True or False: The output resistance of a current mirror decreases when a cascode configuration is used.

  • True
  • False

💡 Hint: Consider what happens to resistance when transistors are cascaded.

Solve 3 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a BJT current mirror that incorporates a cascode configuration. Calculate the required resistor values for biasing and determine the output resistance based on given parameters.

💡 Hint: Consider both transistors' characteristics and the guidelines for biasing.

Question 2

Given an n-channel MOSFET current mirror with specific g_m and r_o parameters, compute the output current when the input voltage fluctuates within specified limits.

💡 Hint: Look back at the formula connecting input voltage change to output changes.

Challenge and get performance evaluation