aromat AQV 212 solid state relays will switch at around 2 volts and <2 mA of current. <1 ohm on resistance. Digikey carries them. Kelly At 10:13 PM 9/30/99 EDT, you wrote: >Hi everyone > >I need my PIC to intercept some sensor signals (when needed) and also have >the ability to pass them through. I have used small relays for this before. I >don't have the room on the board to put relays. We are talking small signal >current less then 2mA. > >What kind of solid state switches are there that don't have a voltage drop. I >don't want to affect the signal. > >I have never used bus drivers would something like that work? Could you >recommend Part numbers? > >Any other ideas? > > >Jon > > William K. Borsum, P.E. -- OEM Dataloggers and Instrumentation Systems & San Diego, California, USA