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Forums
Engineering
Electrical Engineering
Reference Pin on Differential Amplifier
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[QUOTE="teroenza, post: 5498417, member: 127726"] I want to use a differential amplifier to separate the digital and analog ground portions of a circuit, but am not confident in my understanding of the datasheet of the amps I have on hand (amp03). [URL]http://www.analog.com/media/en/technical-documentation/data-sheets/AMP03.pdf[/URL] I think that (looking at page 5), the output of the amp will be referenced to whichever ground I connect to the reference pin (pin #1). Does this make sense? For example, I plan to power the amp from a supply (floating lab supply) referenced to analog ground, but want it's signal to go into an Arduino (powered by a wall wart), so I would connect the reference pin to digital ground in that case. [/QUOTE]
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Engineering
Electrical Engineering
Reference Pin on Differential Amplifier
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