I'll be interested in the list you develop for r-r opamps too. In my limited searching, I found one *giant* caveat to watch out for: power supply range. I found several that were ideal but were only good for the range of 2.7V to 5.5V. If you need parts for 5 volt systems, these might be great; if you need something for higher voltages they won't work. Tom M. At 09:47 AM 3/25/02 -0500, you wrote: >I am about ready to order some rail-to-rail opamps, and I would >appreciate any suggestions from PIC List members. I need several >types: > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.