Practice Trans-impedance Amplifier Feedback Configuration (93.1.4)

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8 questions

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6 sample questions

Question 1.
What does a trans-impedance amplifier do?
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Think about the signals involved.
Question 2.
Explain shunt feedback.
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Consider how it connects to the circuit.
3Question 3.
What is a main function of a trans-impedance amplifier?
- Convert voltage to current
- Convert current to voltage
- Measure resistance
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Think about the flow direction of signals.
4Question 4.
True or False: Shunt feedback is applied when feedback is taken in series.
- True
- False
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Recall how feedback configurations are categorized.
Question 5.
Given a trans-impedance amplifier with a feedback factor of β = 0.1 and an ideal input current of 5 mA, calculate the output voltage.
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Apply the feedback factor to modify the input current before calculating voltage.
Question 6.
Analyze how introducing a finite resistor in parallel would impact an amplifier's performance and derive how it affects output resistance.
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Think about how currents are divided in parallel circuits.

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