Practice Common Mode And Differential Mode Gain (85.3) - Usage of current mirror (Part-C)

Practice: Common Mode and Differential Mode Gain

Lesson 85.3Usage of current mirror (Part-C)

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8 questions

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6 sample questions

Question 1.
What does a differential amplifier do?
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Think of it as focusing on the specific difference between the inputs.
Question 2.
Define common mode gain.
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Common means the same on both sides.
3Question 3.
What does common mode gain represent in a differential amplifier?
- Amplification of different signals.
- Amplification of the same signal across both inputs.
- Ratio between output and input.
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Look for the term 'common' in the definition.
4Question 4.
True or False: A higher Common Mode Rejection Ratio (CMRR) indicates a more effective amplifier.
- True
- False
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Think about the relationship between amplification and noise rejection.
Question 5.
Analyze a differential amplifier circuit with BJTs and determine the CMRR given specific common and differential mode gains. How does this affect your design considerations?
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Assess how the input signal impacts each gain type.
Question 6.
Create a schematic of a differential amplifier using MOSFETs with an active load. Calculate the expected gains.
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Pay attention to how active loads influence the output characteristics.

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