Practice Modified Circuit (85.2.3) - Usage of current mirror (Part-C) - Analog Electronic Circuits - Vol 4

Practice: Modified Circuit

Lesson 85.2.3Usage of current mirror (Part-C)

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9 questions

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

Question 1.
What is the purpose of a current mirror in a modified differential amplifier circuit?
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Think about how currents are set in the circuit.
Question 2.
Define the term 'differential mode gain'.
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Focus on the 'difference' aspect in differential amplifiers.
3Question 3.
What is a key advantage of using a current mirror?
- Increases noise
- Maintains current consistency
- Reduces gain
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Think about what a mirror does!
4Question 4.
True or False: Active loads will decrease both common mode and differential mode gains.
- True
- False
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Recall how active components affect circuit performance.
Question 5.
A modified differential amplifier is designed with a current mirror providing the tail current. Analyze how the circuit reacts to a sudden change in input signal using small signal analysis.
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Pay attention to the small signal parameters!
Question 6.
You are tasked to improve an existing differential amplifier by implementing an active load derived from a current mirror. Describe the steps to analyze the modifications you made.
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Focus on the modifications to gain analysis.

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