Practice Cascode Current Source (61.1) - Multi-Transistor Amplifiers: Cascode Amplifier (Part A)
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Cascode Current Source

Practice - Cascode Current Source

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is a cascode configuration?

💡 Hint: Think about how stacking transistors affects the circuit.

Question 2 Easy

What does output impedance refer to?

💡 Hint: Consider its importance for amplifier performance.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the purpose of a cascode current source?

To reduce input impedance
To increase output impedance
To decrease frequency response

💡 Hint: Focus on the benefits of stacking transistors.

Question 2

True or False: Input capacitance is higher in a cascode configuration compared to a standard CE amplifier.

True
False

💡 Hint: Think about how Miller capacitance changes with circuit configuration.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a simple cascode current source circuit given that the desired output impedance is at least 5 times higher than a single CE stage.

💡 Hint: Consider how the support and characteristics of one transistor transfer to the upper stage.

Challenge 2 Hard

Analyze the frequency response of a cascode amplifier and predict how it behaves compared to a regular CE amplifier.

💡 Hint: Think about how capacitance scales with gain in both configurations.

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Reference links

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