USB Digital Isolator between Arduino and PC

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engr_joni_ee

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Hi, I have seen a custom PCB design having Arduino and USB connector. They use USB Digital Isolator ADuM3160 by Analog Devices which I am not sure why do we need such isolation. In which this chip is more significant to use in custom PCB designs ?
 

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Hi,

Your application tells whether you need isolation or not.

Maybe it´s a measurement device which needs galvanic isolation to the input.
Maybe it´s an audio device that wants to avoid ground loops.
Or it´s a medical equippment that needs to comply with higher safety standards then SELV.
Or any other reason...

Klaus
 
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