84.1.7 - Differential Mode Gain
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Practice Questions
Test your understanding with targeted questions
Define differential mode gain.
💡 Hint: Think about how signals are compared in an amplifier setup.
What is the role of a current mirror?
💡 Hint: Consider the term 'mirror' and how it relates to current.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What defines differential mode gain?
💡 Hint: Focus on the action of the amplifier concerning the inputs.
True or False: Current mirrors can improve common mode gain.
💡 Hint: Think about the role of current mirrors in maintaining currents.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Given a differential amplifier configuration with current mirrors, derive the expression for differential mode gain in terms of transconductance and load resistance.
💡 Hint: Recall how transconductance interacts with load resistance.
A differential amplifier uses a current mirror to replace a tail resistor providing a reference current. If the reference current is 2 mA, calculate the tail current for identical transistors.
💡 Hint: Focus on the properties of current mirrors providing equal current to their branches.
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