Practice Common Mode Stimulus (78.2.1) - Differential Amplifier : Analysis and Numerical Examples (Contd.)

Practice: Common Mode Stimulus

Lesson 78.2.1Differential Amplifier : Analysis and Numerical Examples (Contd.)

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9 questions

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6 sample questions

Question 1.
Define common mode gain.
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Consider what happens when both inputs see the same signal.
Question 2.
What does it mean to have signals in differential mode?
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Think about how the two signals interact when applied.
3Question 3.
What is the common mode gain denoted by?
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Recall the notation from our discussions.
4Question 4.
True or False: Common mode voltage leads to differences in outputs.
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Consider the nature of identical input signals.
Question 5.
Given a circuit with a common mode gain of -3 and an input voltage of 5V to both inputs, calculate the common mode output and describe any assumptions made.
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Use the common mode gain formula.
Question 6.
Design a simple differential amplifier circuit indicating how to keep transistors in their active region when applying a constant DC voltage. Discuss the implications of your design.
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Consider D.C operating points and analyze signal ranges.

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