Practice - Differential Gain (A_d)
Practice Questions
Test your understanding with targeted questions
What does A_d stand for?
💡 Hint: Remember that A_d relates to the difference between input signals.
Is A_d typically a positive or negative number?
💡 Hint: Consider the output's relation to the input signal.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for differential gain (A_d)?
💡 Hint: Focus on the parameters used for amplification.
True or False: A higher R_C leads to a lower A_d.
💡 Hint: Consider how amplification is achieved in circuits.
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Challenge Problems
Push your limits with advanced challenges
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.
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.
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Reference links
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