Practice Small Signal Equivalent Circuit Of Differential Amplifier (77.2.3) - Differential Amplifier : Analysis and Numerical Examples

Practice: Small Signal Equivalent Circuit of Differential Amplifier

Lesson 77.2.3Differential Amplifier : Analysis and Numerical Examples

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9 questions

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6 sample questions

Question 1.
Define the term 'small signal equivalent circuit'.
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Think about simplifying complex circuits for easier analysis.
Question 2.
What is Differential Mode?
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Focus on the word 'difference' in the term.
3Question 3.
What does the small signal equivalent circuit focus on?
- AC and DC components
- Only DC components
- Only AC signals ignoring DC
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Remember what part we are discarding for analysis.
4Question 4.
True or False: The output voltage of a differential amplifier in common mode operations should ideally be zero.
- True
- False
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Consider what happens with identical inputs.
Question 5.
For a differential amplifier with a transconductance of 2 mA/V and a load resistance of 1 kΩ, calculate the differential gain.
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Utilize the gain formula and ensure units are compatible.
Question 6.
Explain the practical implications of having a low common mode rejection ratio (CMRR) in differential amplifiers.
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Think about how common signals influence output fidelity.

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