21.6.6 - High Frequency Small Signal Model
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What does a small signal model represent?
💡 Hint: Consider the operating conditions when small changes occur.
Define transconductance.
💡 Hint: Think about input-output relationships in circuits.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the role of transconductance in small signal models?
💡 Hint: Think about the direct relationship between input and output in circuits.
True or False: The small signal model can only be used for low frequency circuits.
💡 Hint: Consider how circuit strategies adapt over different frequency ranges.
1 more question available
Challenge Problems
Push your limits with advanced challenges
In a MOSFET circuit with a V_gs of 2V and a load resistance of 3 kΩ, if gₘ is 1.5 mA/V, calculate V_out for a small signal input of 0.5 V.
💡 Hint: Use the basic gain formula which combines resistance and transconductance.
Explain how the introduction of capacitances affects the small signal model at high frequencies. Provide a circuit example.
💡 Hint: Think about the implications of capacitance on signal timing and circuit response.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.