50 LMV321M5 in SOT23 packing on tape : $12 *including* world-wide shipping. Single supply (2.7-5.5 V). Low-power version of the popular LM324. Rail-to-rail output swing. Space saving SOT23 packing. Product page : http://www.national.com/pf/LM/LMV321.html Data sheet : http://www.national.com/ds.cgi/LM/LMV321.pdf A nice "companion" opamp for e.g. signal conditioning before the ADC. Or other cases with a single 5V supply. (Digikey asks $30.88 for 50. *Plus* shipping...) Larger quantities available. Jan-Erik. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist