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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define differential gain (Ad).
💡 Hint: Think about how amplifiers distinguish between two input signals.
Question 2
Easy
What is common mode gain (Acm)?
💡 Hint: Consider what happens when both inputs receive the same signal.
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 the differential gain (Ad) measure?
- Amplification of input voltage
- Amplification of voltage difference
- Amplification of common signals
💡 Hint: Recall what differential amplifiers do with two different inputs.
Question 2
CMRR is defined as the ratio between which two gains?
- Ad and Acm
- Acm and input voltage
- Ad and output voltage
💡 Hint: Think about the key parameters underlying amplifier effectiveness.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have a differential amplifier with Ad = 75 and Acm = 0.15. Calculate the CMRR in both linear and decibel forms.
💡 Hint: Dividing Ad by Acm gives you CMRR, remember to apply the log function for dB!
Question 2
Design a BJT differential amplifier targeting an Ad of 100 and a CMRR of 90 dB. Specify your resistor values and explain your choice.
💡 Hint: Focus on balancing gain performance versus noise rejection for optimal design!
Challenge and get performance evaluation