Practice Equivalent Circuit Description (76.1.2) - Differential Amplifier : Basic Structure and Principle of Operation (Contd.)

Practice: Equivalent Circuit Description

Lesson 76.1.2Differential Amplifier : Basic Structure and Principle of Operation (Contd.)

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9 questions

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6 sample questions

Question 1.
What is a differential amplifier?
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Think about what kind of signals it processes.
Question 2.
What does R_T do in a differential amplifier?
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Consider the stability of the transistors.
3Question 3.
What is the primary function of a differential amplifier?
- To amplify single signals
- To amplify the difference between two input signals
- To reduce noise
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Think about its main purpose in signal processing.
4Question 4.
True or False: A common collector configuration provides voltage gain greater than one.
- True
- False
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Consider what happens to voltage in this configuration.
Question 5.
In a differential amplifier with R_T as 1k ohm, how would doubling R_T affect the overall gain if other resistors remain unchanged?
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Think about the relationship between the resistor values in amplifier designs.
Question 6.
If a differential amplifier's differential and common mode gains are 20 and 0.5, respectively, how would you improve the common mode rejection?
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Focus on how component values influence gain characteristics.

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