> > I might be a sloppy reader, but I can't even find a switch-on time > > specification, which would be the root issue here. So > again, no data => > > no conclusions :( > > Ton should be about 5 nsec for 1N4148. 'should' is not a valid input for design. Can you locate that parameter in the (any?) datasheet? Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist