Practice Differential Amplifier: Analysis And Numerical Examples (contd.) (79.1.1)

Practice: Differential Amplifier: Analysis and Numerical Examples (Contd.)

Lesson 79.1.1Differential Amplifier : Analysis and Numerical Examples (Contd.)

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8 questions

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6 sample questions

Question 1.
What is the DC operating point for a BJT differential amplifier configured with a 2.6 V input?
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Consider the V_BE drop.
Question 2.
What is the significance of small signal parameters?
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Think of small variations around the operating point.
3Question 3.
What is the primary purpose of a differential amplifier?
- To amplify a single signal
- To amplify differences between two signals
- To act as an oscillator
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Think about the name ‘differential’.
4Question 4.
True or False: The common-mode gain should ideally be zero for a perfect differential amplifier.
- True
- False
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Recall the ideal performance of differential amplifiers.
Question 5.
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.
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Use the known formulas for gain calculations.
Question 6.
Design a circuit to achieve an output swing of 10 V while ensuring transistors operate in the active region. What constraints must be considered?
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Consider both positive and negative swings while designing.

4 more questions in this section. Enroll free to practise them all.