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2 cards from this section. Quick, good the night before a test.
What is a differential amplifier?
Think about its function relating to two signals.
What does CMRR stand for?
It's a measure of how well something rejects signals.
What does a differential amplifier do?
Remember its primary function.
True or False: Differential amplifiers have no ability to improve signal quality.
Consider what we've learned about their function.
Consider a scenario where you have a differential amplifier with a CMRR of 120 dB. How would this affect your playback of audio signals in a live setting?
Think about how noise affects sound quality.
If a sensor producing a signal of 0.1V differential input while noise applies 0.5V of common mode, how would you assess the need for a differential amplifier?
Consider the amplifier's ability to deal with noise levels.
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