gEDA-user: analog switch idea

[Peter TB Brett]

On Thursday 03 August 2006 23:38, gene glick wrote:
> I'm looking for some ideas on how to multiplex some single-ended audio
> signals.  The plan is to connect the mux to a differential amp, which in
> turn drives an ADC.
>
> The obvious (at least I think it's obvious) choice is to use some
> variety of analog switch IC. ON-semi has some decent ones actually, but
> they have a THD numbers around 0.01%.  Not bad, but not good enough
> either.  I'd like to get at least an order of magnitude better.

I used ADG719s quite successfully to switch high-frequency (~25 MHz) signals 
with no problems. YMMV, of course, as my application was using them as 
variable-voltage digital switches.

Peter

-- 
Fisher Society publicity officer            http://tinyurl.com/o39w2
CUSBC novices, match and league secretary   http://tinyurl.com/mwrc9
Quake II build tools maintainer             http://tinyurl.com/fkldd

v2sw6YShw7$ln5pr6ck3ma8u6/8Lw3+2m0l7Ci6e4+8t4Eb8Aen5+6g6Pa2Xs5MSr5p4
  hackerkey.com
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: not available
Url : http://www.seul.org/pipermail/geda-user/attachments/20060803/05a9bf2f/attachment.pgp