Practice Transistor Implementation (77.3.1) - Differential Amplifier : Analysis and Numerical Examples

Practice: Transistor Implementation

Lesson 77.3.1Differential Amplifier : Analysis and Numerical Examples

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8 questions

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6 sample questions

Question 1.
What is the purpose of a differential amplifier?
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Think about what happens to the output when two inputs are applied.
Question 2.
Define common mode gain.
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Visualize the signal flow in the amplifier.
3Question 3.
What is the primary function of a differential amplifier?
- To amplify the sum of two signals
- To amplify the difference of two signals
- To provide power
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Think about the input characteristics of the amplifier.
4Question 4.
True or False: Common mode gain is useful for enhancing the performance of differential amplifiers.
- True
- False
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What happens to the functionality of the amplifier in the presence of common mode signals?
Question 5.
Design a differential amplifier using BJTs that meets a specific voltage gain requirement. Explain your design choices.
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What values would you choose for the resistors to achieve stability?
Question 6.
Evaluate the performance of a differential amplifier provided in the circuit diagram. Calculate the range of output signal swing based on given parameters.
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What happens at either extreme of the input voltage?

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