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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does A_d stand for?
💡 Hint: Remember that A_d relates to the difference between input signals.
Question 2
Easy
Is A_d typically a positive or negative number?
💡 Hint: Consider the output's relation to the input 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 is the formula for differential gain (A_d)?
- V_out1 / V_in
- - (g_m * R_C / 2)
- I_CQ / R_C
💡 Hint: Focus on the parameters used for amplification.
Question 2
True or False: A higher R_C leads to a lower A_d.
- True
- False
💡 Hint: Consider how amplification is achieved in circuits.
Solve 3 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A differential amplifier has I_CQ = 0.8 mA, R_C = 6.8 kΩ. Calculate A_d and explain the significance of your answer in practical applications.
💡 Hint: Make sure to calculate g_m first based on I_CQ and V_T.
Question 2
Given a scenario where A_cm measures at 0.01 V while A_d measures at 15 V, compute CMRR in dB and discuss how this impacts performance.
💡 Hint: Remember the logarithmic relation and its impact on noise bias calculations.
Challenge and get performance evaluation