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

[Scott Gravenhorst]

Justin Owen <juzowen at googlemail.com> wrote:
>Hello,
>
>Kind of an(other) oddball question out of curiosity...
>
>When using a pot as a voltage divider e.g. from 0-xV it's 
>considered good practice to provide xV from a 'stout' buffered 
>source. 
>
>Is there any advantage (or even any use?) to providing a buffered 
>GND source for the 0V end of the voltage divider? 
>
>Other, simpler alternatives/best practices for the 0V end?
>
>Thanks,
>
>Justin

I wouldn't buffer ground unless it's a virtual ground (which should
already be buffered anyway).  A real ground should already be "stout".

-- ScottG
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