[sdiy] selecting muxes??

[harry]

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).

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.

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)

H^) harry

media.nai at rcn.com wrote:

> I'm most familiar with the CD4000 CMOS series multiplexers.  Besides
> voltage range, "break before make", and Ron, are they are any other
> considerations??  Is there an advantage in using mux chips with a newer
> design??  I've downloaded a number of application notes, but there seems to
> be hundreds of various mux chips on the market.  Is there a particular
> series of mux chips that anyone would recommend??
>
> THANX!! :)

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