65.1.6 - Input Capacitance Calculation
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 is the voltage gain of the discussed cascode amplifier?
💡 Hint: Recall the earlier calculations in the session.
Define input capacitance in the context of an amplifier.
💡 Hint: Think about what capacitance affects in a circuit.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does the input capacitance depend on in a cascode amplifier?
💡 Hint: Consider how modifications in gain and resistance interplay.
True or False: Higher gain in a cascode amplifier always results in a higher input capacitance.
💡 Hint: Remember the relationship defined in the section.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Given a cascode amplifier with C_gs1 = 12 pF and C_gd1 = 7 pF and a voltage gain of -40, calculate the new input capacitance.
💡 Hint: Substitue the values carefully into the formula.
Investigate how changing small-signal parameters affects both gain and capacitance in the circuit if you switch from using MOSFETs to BJTs.
💡 Hint: Research the inherent differences between BJTs and MOSFETs to support your analysis.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.