> Going over it briefly it appears that I was incorrect earlier - the > acquisition time (sampling time) is constant based on the device clock, No, the acquisition time is completely up to you. It is the time between selecting the A/D channel and starting a conversion. Both these events are initiated by deliberate firmware action. ******************************************************************** Olin Lathrop, embedded systems consultant in Littleton Massachusetts (978) 742-9014, olin@embedinc.com, http://www.embedinc.com -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu