Practice Analog Electronic Circuits (87.1) - Numerical examples on current mirror and its applications (Part-B)

Practice: Analog Electronic Circuits

Lesson 87.1Numerical examples on current mirror and its applications (Part-B)

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8 questions

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6 sample questions

Question 1.
Define a current mirror.
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Think about how it operates within a circuit.
Question 2.
What is the purpose of a cascode transistor in a current mirror?
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Consider what happens to the transistor configuration.
3Question 3.
What is the primary function of a current mirror in electronics?
- To amplify voltage
- To replicate a current
- To store energy
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Think about the key purpose of mirrors in context.
4Question 4.
True or False: Cascode transistors improve the output resistance of current mirrors.
- True
- False
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Consider the impact of added transistors on resistance.
Question 5.
Design a cascode current mirror using BJTs to achieve a specific output current of 1.5 mA. Determine required biasing resistors to ensure the circuit operates correctly.
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Start with the required output current, then derive the biasing needs from the transistor characteristics.
Question 6.
Explain how the inclusion of a cascode transistor impacts the dynamic response of a common source amplifier circuit. Discuss the influence on bandwidth and frequency response.
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Focus on the trade-offs between resistance and amplifier response.

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