Practice Active Components To Improve Performance (75.6.2) - Differential Amplifier : Basic Structure and Principle of Operation

Practice: Active Components to Improve Performance

Lesson 75.6.2Differential Amplifier : Basic Structure and Principle of Operation

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10 questions

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6 sample questions

Question 1.
What does a differential amplifier do?
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Think about its purpose in electronics.
Question 2.
What are the two types of gain characterized in differential amplifiers?
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Recall the two components that can affect amplifier performance.
3Question 3.
What is the goal of a differential amplifier?
- To amplify all signals equally
- To amplify the difference in input signals
- To reduce signal noise
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Consider the specific definition of 'differential'.
4Question 4.
True or False: Increasing A_c is beneficial for a differential amplifier's performance.
- True
- False
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Discuss the importance of noise rejection versus amplification.
Question 5.
Design a basic differential amplifier circuit schematic using a BJT. Explain the component choices and how they meet the performance expectations for A_d and A_c.
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Think about the importance of matching in amplifiers.
Question 6.
Given a differential amplifier with a known A_c, suggest modifications to the circuit to decrease it while maintaining A_d. Justify your suggestions.
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Reflect on how active components can enhance performance.

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