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2 cards from this section. Quick, good the night before a test.
What is the primary function of a differential amplifier?
Think about noise rejection.
Define common mode gain.
What happens when inputs are the same?
What is the main advantage of using a differential amplifier?
Think about the conditions in noisy environments.
True or False: Common mode gain should be as high as possible.
Consider the purpose of the differential amplifier.
Design a differential amplifier circuit that has a differential gain of 100 and a common mode gain of 1. Discuss the implications of this design.
Consider the resistor values carefully and their impact on gain.
Given an input signal with both a differential component of 150 mV and a common mode of 50 mV, calculate the output for a differential gain of 30 and a common mode gain of 1.
Focus on how the differential gain applies here.
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