Practice Small Signal Equivalent Circuit Analysis (62.2.5) - Multi-Transistor Amplifiers : Cascode Amplifier (Part B)

Practice: Small Signal Equivalent Circuit Analysis

Lesson 62.2.5Multi-Transistor Amplifiers : Cascode Amplifier (Part B)

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9 questions

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2 cards from this section. Quick, good the night before a test.
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6 questions · about 4 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Define the term 'cascode amplifier'.
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Think about the arrangement of transistors!
Question 2.
What is the main advantage of using a common gate stage?
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Consider what happens to current in this configuration.
3Question 3.
What is the main purpose of a cascode amplifier?
- To increase voltage gain
- To reduce noise
- To lower output impedance
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Think about why we cascade these specific configurations.
4Question 4.
True or False: The common gate stage of a cascode amplifier amplifies the input voltage.
- True
- False
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Think about what happens to the current in this stage.
Question 5.
Design a cascode amplifier circuit with specified values for transconductance and output load. Explain how to maintain the design within desired parameters.
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Focus on hybrid circuits with both MOSFETs in saturation.
Question 6.
Analyze how you would modify a cascode amplifier for improved high-frequency performance in a communication circuit.
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Think about the interactions between impedance and signal frequency.

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