Hello, I am looking for a replacement for National's LF355 (being discontinued) for use in a peak detect circuit. Basically, a FET-input op-amp with 30pA or less bias current and 20mA or more output current. Any suggestions? It would be nice if national would recommend replacements when they discontinue their parts - guess I'm dreaming. Regards, Donovan -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.