Practice Input Common Mode Range (78.2.9) - Differential Amplifier : Analysis and Numerical Examples (Contd.)

Practice: Input Common Mode Range

Lesson 78.2.9Differential Amplifier : Analysis and Numerical Examples (Contd.)

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9 questions

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6 sample questions

Question 1.
What is common mode gain?
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Look for how the amplifier behaves with the same input.
Question 2.
What defines the active region of a transistor?
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Consider the threshold voltages.
3Question 3.
What happens when identical signals are applied to both inputs of a differential amplifier?
- The output is amplified.
- The output remains unchanged.
- The response varies drastically.
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Think about how identical inputs would interact.
4Question 4.
True or False: The common mode gain is a positive contributing factor to amplification.
- True
- False
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Consider the purpose of a differential amplifier.
Question 5.
Determine the common mode gain if the output remains unchanged when identical signals are input. Provide a value for A_c.
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Reflect on how common mode affects outputs.
Question 6.
Examine the effects on output swing if the input common mode voltage varies beyond acceptable limits. Detail possible scenarios.
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Consider the operational characteristics of the transistors.

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