Jon,

you might want to try analog switches. one of them is 4066
better one is DG411 by  HARRIS microchip uses this part in
picstart + too. the resistance is about 40 ohms.

Andre Abelian


> 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
>