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2 cards from this section. Quick, good the night before a test.
Define common mode gain.
Think about how the amplifier responds to equal inputs.
What is a differential amplifier?
Recall what makes it different from regular amplifiers.
What is one major consequence of having high common mode gain?
Think about what happens when equal input signals are amplified.
True or False: Increasing DC voltage can enhance the common mode gain.
Consider the impact on the transistor's operating region.
Given a differential amplifier with a differential mode gain of 50 and a common mode gain of -3, find the output voltage for differential input signals of 0.1V.
Apply the formula for differential output first.
Design a scenario where you need to reduce the common mode gain of your amplifier circuit. What components will you adjust?
Consider what modifications can increase the effectiveness of the circuit.
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