Practice - Differential Amplifier: Analysis and Numerical Examples (Contd.)
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Practice Questions
Test your understanding with targeted questions
What is the DC operating point for a BJT differential amplifier configured with a 2.6 V input?
💡 Hint: Consider the V_BE drop.
What is the significance of small signal parameters?
💡 Hint: Think of small variations around the operating point.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary purpose of a differential amplifier?
💡 Hint: Think about the name ‘differential’.
True or False: The common-mode gain should ideally be zero for a perfect differential amplifier.
💡 Hint: Recall the ideal performance of differential amplifiers.
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Challenge Problems
Push your limits with advanced challenges
Given a BJT differential amplifier with Vcc = 15 V, R1 = R2 = 10 kΩ, and a load resistor RL = 5 kΩ, calculate the differential and common-mode gains assuming gm = 0.05 mS.
💡 Hint: Use the known formulas for gain calculations.
Design a circuit to achieve an output swing of 10 V while ensuring transistors operate in the active region. What constraints must be considered?
💡 Hint: Consider both positive and negative swings while designing.
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