Hi Kai,

You have been posting this circuit in several messages for illustrating the concept of separate AGND, DGND and star grounding.



If I am right in the PCB of above circuit "The AGND and DGND might be meeting under the ADC MCP3201. Thus this is the star ground point. And the power connector too should be located at this place or maybe a track originating at this point is going to connector at some other place." Am I right??

If you have the PCB layouts for above schematic can you please post it here.

Thanks & Regards,
Prahlad Purohit