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2 cards from this section. Quick, good the night before a test.
What is the purpose of a differential amplifier?
Think about noise reduction in signals.
Define common mode gain.
What happens when both inputs receive the same signal?
What does a differential amplifier primarily amplify?
Think about what is being emphasized in the signal.
True or False: A low common mode gain is desirable in differential amplifiers.
Consider what helps improve output quality.
Design a differential amplifier circuit with specified resistances to achieve a differential gain of 25 while ensuring the common mode gain is as low as possible. Discuss the design choices.
Think about resistor matching and feedback.
Given an amplifier with a differential gain of 10 and a common mode gain of 5, calculate the CMRR and discuss its significance in applications.
Recall that CMRR indicates noise rejection capabilities.
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