Hi Jon

You could try the MAX312,313,314 from Maxim. These have a typical on
resistance of 10ohms or the DG417,418,419 from Silconix and Maxim that have
a typical on resistance of
20 ohms. These parts will allow a maximum of +/- 15 to +/-20 volt on the
lines.

 I haven't used the 312 - 314 but the 417- 419's work well.

Peter G
> -----Original Message-----
> From: Jon Petty [SMTP:Phxsys3@AOL.COM]
> Sent: Friday, 1 October 1999 12:14
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      solid state switches for signal wires
>
> 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