Practice Common Mode Gain Analysis (85.4.1) - Usage of current mirror (Part-C)

Practice: Common Mode Gain Analysis

Lesson 85.4.1Usage of current mirror (Part-C)

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8 questions

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6 sample questions

Question 1.
What is common mode gain?
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Think about signals that are the same at both inputs.
Question 2.
What role do current mirrors play in differential amplifiers?
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Consider how they manage current flow in the circuit.
3Question 3.
What is the main purpose of a differential amplifier?
- Amplify noise
- Amplify the difference between two signals
- Filter signals
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Think about its name; differential means difference.
4Question 4.
True or False: Increasing the Early voltage decreases the common mode gain.
- True
- False
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Recall what Early voltage contributes to transistor operation.
Question 5.
Given a differential amplifier circuit with specified transistor parameters, determine the impact of reducing the tail current on common mode gain.
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Refer to how tail current influences output characteristics.
Question 6.
Design a scenario where a differential amplifier improves signal integrity in a noisy environment and compare it with a non-differential amplifier.
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Highlight specific examples of applications.

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