[sdiy] Buffering 0V when using a pot as a voltage divider?

[Neil Johnson]

Paul wrote:
> Nothing wrong with a thick ground trace, but if you are reduced to
> thickening a ground trace to 'improve' a ground problem, then the layout is
> wrong in the first place.

Nice point.  Here's a paper from Analog Devices that goes into more detail:

http://www.analog.com/static/imported-files/analog_dialogue/5467026043687049331665676350Grounding.pdf

Figure 10.7 nicely shows the nature of the problem.

Neil
-- 
http://www.njohnson.co.uk