On Tue, 26 Feb 2002 10:02:57 -0300, you wrote: >Hello, > > inspired by the recent thread about "Switching low voltage AC", I'm >returning to the development of a solid state relay using MOSFETs. > > I'm trying various configurations of MOSFET drivers, but what I = really >need is a schmitt trigger with some mA capabilities. A schmitt trigger = can >be done with an op-amp, but the slew-rate of the opamps I know can swing= to >GND and VCC is very slow. > > Any sugestions? Use a comparator instead of an op-amp. op-amps do not make good comparators in many cases. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads