On Fri, Feb 13, 2009 at 10:42 PM, Bob Blick wrote: > 16F series figure 40uS per channel. If you are just doing one channel > you can shave some off the track-and-hold time. That's just off the top > of my head, the datasheet has better numbers but takes some > headscratching to sort out all the phases of the conversion process. > > Cheers, Bob I believe 40 us is more than enough speed to measure heart beat. Thanks! -- solarwind -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist