Practice Voltage Ranges In Large Signal Analysis (78.2.8) - Differential Amplifier : Analysis and Numerical Examples (Contd.)

Practice: Voltage Ranges in Large Signal Analysis

Lesson 78.2.8Differential Amplifier : Analysis and Numerical Examples (Contd.)

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8 questions

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6 sample questions

Question 1.
What is the DC operating point?
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Consider the active region of transistors.
Question 2.
Why is input common mode voltage important?
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Think about average voltage levels.
3Question 3.
What happens if the input common mode voltage exceeds the range?
- Transistors enter cutoff
- Transistors saturate
- Signal quality improves
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Recall the importance of keeping transistors in a specific range.
4Question 4.
True or False: The output swing of an amplifier should be centered around the DC operating point.
- True
- False
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Think about maximizing both positive and negative ranges.
Question 5.
A differential amplifier is designed with a given DC operating point. If the input common mode voltage is increased by a specific value, determine the new output swing limits.
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Use the relationships of voltage and currents for transistors in active regions.
Question 6.
Evaluate how changing both resistors in a differential amplifier affects the input common mode range and output swing.
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Examine how changes in resistor values influence both voltage and current flow.

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