Lpc2000

I'm not sure, that You know if high source impedance will increase 
sample collection time.

drb5599 wrote:
> Sorry if this is an obvious question.  But, I have looked at the User 
> Manual, and all other documentation I have and can not find a 
> specification for input impedance on the ADC input pins????
> 
> Does anybody know what this impedance is??
> 
> I am going to be feeding a signal with a 200k impedance to one of the 
> ADC inputs and am trying to figure out if I need a buffer or not.
> 
> Thanks,
> Dave Butler
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