Practice Dangers Of Common Mode Signals (71.2.4) - Single - ended Vs. Differential Signaling and Basic Model of a Differential Amplifier(Contd.)

Practice: Dangers of Common Mode Signals

Lesson 71.2.4Single - ended Vs. Differential Signaling and Basic Model of a Differential Amplifier(Contd.)

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9 questions

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

Question 1.
What is a common mode signal?
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Think about how it might affect the output signal.
Question 2.
Define differential mode gain.
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How does this relate to effective amplification?
3Question 3.
What is the ideal value for common mode gain in a differential amplifier?
- High
- Medium
- Low
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Recall why we want to keep noise low.
4Question 4.
True or False: Differential signals are unwanted in a differential amplifier.
- True
- False
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Think about what we aim to amplify.
Question 5.
Given a differential amplifier with a differential mode gain of 50, a common mode gain of 0.1, and input voltages of 2V (differential) and 10V (common mode), calculate the output voltage.
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Apply the gains to each signal input.
Question 6.
If common mode signals are affecting outputs significantly, what design changes would you implement to minimize their impact?
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Think about component selection and circuit layout.

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