PCB grounding

ahmedalaa87 · June 2014

hi now i'm implementing the OPENBCI according to the schematic , i have an issue that i misunderstand ! should i connect -GND with AGND ? in other words should _GND be connected to the power plane ? as i see in the schematic -GND is not connected directly to AGND ?

another matter, could you please give us the PCB methodology and tips to achieve the project in a correct way ?

thank you so much

rick · June 2014

Hi,
as you say yourself, _GND is not connected to AGND in the schematics. They are isolated from each other by the ADUM6010 chip.

I can send you the PCB layout i made and you can check out the <a href="http://buildandcrash.blogspot.de/2013/12/eeg-design-time-for-something-totally.html"; title="this one"></a>

Rick

rick · June 2014

rick · June 2014

http://buildandcrash.blogspot.de/2013/12/eeg-design-time-for-something-totally.html

ahmedalaa87 · June 2014

Thank you so much, there is another issue that i can't handle with, then do we need to connect -GND to a separate power plane than GND ?

rick · June 2014

What do you mean by -GND? Can't find it..

PCB grounding

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