Practice Improving Circuit Performance With Cascode Structure (82.1.6) - Current mirror circuits (Part-B)

Practice: Improving Circuit Performance with Cascode Structure

Lesson 82.1.6Current mirror circuits (Part-B)

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8 questions

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6 sample questions

Question 1.
Define cascode structure in current mirrors.
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Think about how one transistor can affect another.
Question 2.
What does non-ideality refer to in electrical circuits?
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Consider factors like voltage and current variations.
3Question 3.
What is the primary purpose of a cascode structure in a current mirror?
- To increase current gain
- To reduce output voltage sensitivity
- To decrease power consumption
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Consider how this structure interacts with output variations.
4Question 4.
True or False: A higher Early voltage leads to better output current stability in current mirrors.
- True
- False
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Think about how the resistances interact with output stability.
Question 5.
Design a cascode current mirror with specific transistor parameters. Explain the interactions of their output currents and the importance of Early voltage. Calculate the expected impedance.
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Utilize ratios of geometries and values from existing setups.
Question 6.
Given a current mirror circuit, assess the potential output across varying load voltages. Calculate how a cascode structure mitigates output fluctuations.
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Look into how each transistor's action influences overall current flow.

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