I use the PIC24HJ256GP610 in several products. It has 32 analog inputs. I generally use two ADCs and 2 DMA channels. The DMA seems to only support 16 analog inputs, so you need to use two. Harold --=20 FCC Rules Updated Daily at http://www.hallikainen.com Not sent from an iPhone. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .