I think this is one of those rules of thumb someone made up.
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Loyer, Jeff (Redacted sender "jwloyer" for DMARC)
Sent: Monday, November 14, 2016 2:00 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Caps between "isolated grounds"?
I was looking at some designs and found different ground symbols connected
by capacitors. Can anyone explain why this might be done? Everything I've
seen or heard says this is a bad thing (I would connect them directly), but
I want to be sure I'm not missing something. I think there are some A/D
devices which have specific guidelines for separating digital and analog
grounds, but I don't think they'd be connected by caps.
Thanks,
Jeff Loyer
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