[sdiy] Maxim analog switch ICs

[jhaible at debitel.net]

Z> > ... Fortunately, today there are
> > plenty CMOS switches which can handle 30V. So I'd expect
> > no problem if you use one of these.
> 
> That's our quest! What do you suggest instead of this Maxim chip?


Whatever you can get easily, and which is spec'ed for 30V or more.
I have no big experience with modern Muxes, because I've either
used cheap 405x stuff, or discrete FETs. Only in Don's circuit I
need fast switching and low charge injection, so I went for the
"good solution". But for this Filter routing, I can't see any 
critical parameter. Switching time, nonlinearity, Ron - no real
issues here. If you want to have a very straight forward 
construction (circuit on board looks like circuit in schematics),
discrete BF245's (with 1Meg resistors and 1N4148 diodes per
switch) would be my choice. If this is not important, just use
an integrated chip that can stand 30 Volts.

JH.

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