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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a differential amplifier?
💡 Hint: Think about its main function.
Question 2
Easy
State the formula for A_d.
💡 Hint: What do we measure the output relative to?
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does CMRR indicate about a differential amplifier's performance?
- Ability to amplify signals
- Ability to reject noise
- Ability to increase bandwidth
💡 Hint: Consider what you want to avoid in signal processing.
Question 2
True or False: An ideal common-mode gain for a differential amplifier should be zero.
- True
- False
💡 Hint: Relate this to its fundamental function.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A BJT differential amplifier is set up with a collector resistor (R_C) of 10kΩ and operates at a quiescent current of 0.5mA. Calculate the differential gain and discuss its implications for signal processing.
💡 Hint: Use the provided formulas and remember that the negative sign indicates phase shift.
Question 2
If a differential amplifier outputs 2V from a differential input of 5mV when calculated, but you measure only 1V, calculate the common-mode gain and discuss potential error sources.
💡 Hint: Reflect on your experimental setup and components’ characteristics.
Challenge and get performance evaluation