I believe to make a schmitt, you're going to need two transistors and several resistors. How about just using a chip? For example, the http://www.fairchildsemi.com/ds/NC/NC7NZ17.pdf works down to 1.65V. Harold On Thu, 25 Jul 2002 20:06:32 -0700 John Waters writes: > Hi all, > > Could someone suggest me a simple transistor based schmitt trigger > circuit > that uses 3 volts as Vcc and has big difference in turn ON and turn > OFF > voltages at output, i.e. big hysteresis window? I want to use it to > recover > a slow changing but noisy binary signal (signal that is made up by > only two > voltage levels between 3 volts). > > Thanks in advance! > > John > > _________________________________________________________________ > Send and receive Hotmail on your mobile device: > http://mobile.msn.com > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu > > FCC Rules Online at http://hallikainen.com/FccRules Lighting control for theatre and television at http://www.dovesystems.com Reach broadcasters, engineers, manufacturers, compliance labs, and attorneys. Advertise at http://www.hallikainen.com/FccRules/ . ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/web/. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads