Practice Transimpedance Amplifier Overview (92.1.8) - Feedback system (Part-C)

Practice: Transimpedance Amplifier Overview

Lesson 92.1.8Feedback system (Part-C)

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9 questions

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6 sample questions

Question 1.
What is a transimpedance amplifier?
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Think about the role it plays in sensor applications.
Question 2.
What is the ideal input resistance of a transimpedance amplifier?
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How does this affect the source connected to it?
3Question 3.
What is the primary function of a transimpedance amplifier?
- Convert voltage to current
- Convert current to voltage
- Amplify power
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Think about the applications it serves.
4Question 4.
Negative feedback in amplifiers serves to:
- True
- False
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What does feedback typically do?
Question 5.
Given a transimpedance amplifier set up with a feedback factor β = 0.3 and an open-loop gain A = 50, calculate the new input resistance given the original input resistance R_in = 100kΩ.
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Use the feedback formula we've discussed.
Question 6.
Explain how a load resistance of 1kΩ affects the input and output performance of a transimpedance amplifier originally designed with ideal characteristics.
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Consider how loading affects current and voltage relationship.

5 more questions in this section. Enroll free to practise them all.