Practice Differential Mode Analysis (77.2.4) - Differential Amplifier : Analysis and Numerical Examples

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6 sample questions

Question 1.
Define a differential amplifier.
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Think about amplifiers that contrast two signals.
Question 2.
What is small signal analysis?
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It helps study circuits without considering large changes.
3Question 3.
What does a differential amplifier amplify?
- The absolute input
- Noise
- Difference between inputs
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Focus on the characteristic feature of differential amplifiers.
4Question 4.
True or False: In common mode operation, differential amplifiers produce a voltage output.
- True
- False
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Think about how inputs affect the output.
Question 5.
A differential amplifier has a transconductance of 2 mA/V and a load resistance of 10 kΩ. Calculate the differential gain.
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Use the gain formula as a starting point.
Question 6.
Explain how you would improve the common mode rejection ratio (CMRR) of a differential amplifier.
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Think about electronic component matching.

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