[sdiy] selecting muxes??

[media.nai at rcn.com]

>The 4000 series have limited voltage range... not ideal for bipolar
>supplies except with some dirty tricks (like +/- 7.5V supplies or
>cheating on the negative supply).

I checked again.  Many of the 4000 (4051, 52, 53) series muxes have Vdd,
Vss, and Vee power pins, and can handle AC signals.

>There is also "charge injection" as a spec which relates to how much of
>the command signal gets coupled into the switched signal. This can be
>very important in S/H apps etc.  Less is better.

OK :)  How would that spec be listed??

>I used the Maxim MAX 308 and MAX 309 in a recent design and was satisfied
>with the performance.  I'm also using the Siliconix DG444 (quad analog
>>switch)

Do you know a vendor in the US for the Siliconix DG series??

>  I've used Siliconix DG-series parts for 20 years.  In my opinion *the*
>analog switches/muxen of choice.  DG308A is quad SPST, DG309A is quad SPST
>with inverse switch logic, DG508A 8:1 mux, DG509A dual 4:1 mux (these have
>TTL-compatible control inputs even at +/-15V supply), to name just a few.
>
>  Siliconix is now Vishay-Siliconix, and the 508/509 are superceded by the
>408/409.  Analog Devices also 2nd-sources many of the parts.  There are
>all sorts of DG parts in the catalog.