Practice Dominant Pole Calculation (5.6.1) - MOSFET Amplifiers - Analog Circuits
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Dominant Pole Calculation

Practice - Dominant Pole Calculation

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does the term 'Miller Effect' refer to?

💡 Hint: Think about feedback and how it affects capacitance.

Question 2 Easy

What is the formula for equivalent capacitance (Ceq)?

💡 Hint: Consider the impact of voltage gain on capacitance.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the formula for calculating Ceq?

C<sub>eq</sub> = C<sub>gd</sub> × |A<sub>V</sub>|
C<sub>eq</sub> = C<sub>gd</sub>(1 + |A<sub>V</sub>|)
C<sub>eq</sub> = C<sub>gd</sub>/(1 - |A<sub>V</sub>|)

💡 Hint: Think about how gain interacts with capacitance.

Question 2

True or False: A higher Req increases the -3dB frequency.

True
False

💡 Hint: Consider the math behind the -3dB formula.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A MOSFET has a gate-drain capacitance (Cgd) of 4 pF and a gain of -15. Calculate Ceq and determine the -3dB frequency for Req = 1 kΩ.

💡 Hint: Careful with unit conversions; make sure to keep everything in consistent units.

Challenge 2 Hard

Given a circuit with Cgd = 10 pF, AV = 5, and Req = 200 Ω, verify if the determined -3dB frequency allows for audio applications.

💡 Hint: Consider the standard frequency ranges for audio applications to evaluate performance.

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Reference links

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