Practice Operating Point And Small Signal Parameters (80.6.1) - Differential Amplifier : Analysis and Numerical Examples (Contd.)(Part B)

Practice: Operating Point and Small Signal Parameters

Lesson 80.6.1Differential Amplifier : Analysis and Numerical Examples (Contd.)(Part B)

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9 questions

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6 sample questions

Question 1.
Define common mode voltage.
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Think about what influences both inputs.
Question 2.
What is an operating point?
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Consider where the circuit 'sits' in terms of DC values.
3Question 3.
What occurs if the common mode voltage is too high?
- Transistor enters cut-off
- Transistor enters saturation
- No effect
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Think about operational regions.
4Question 4.
True or False: The operating point should always be at the supply voltage for optimal performance.
- True
- False
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Consider the meaning of balance in circuits.
Question 5.
Given a differential amplifier circuit with specific resistance values, calculate the output voltages if the common mode input is increased beyond its limit.
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Assess the current flow through each transistor as the known parameters change.
Question 6.
Design a differential amplifier circuit to achieve a specific gain while ensuring the common mode gain remains minimal.
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Understand how gain and stability interact in amplifier designs.

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