[sdiy] Re: analog switch ICs

[Paul Higgins]

Has anyone tried using the H11Fx (x=1,2,3) FET optoisolators as analog 
switches? I'm thinking in particular of Mesa/Boogie's favorite 
technique of using Vactrols.  They use them in places where you could 
use relays or even 4066s (at least in some low-voltage parts of the 
circuit, anyway).

-PRH

On Thursday, May 6, 2004, at 08:01 PM, harrybissell wrote:

> We have a Quorum...
>
> I use the DG444 quad switch... I might not recommend that one for 
> others but I
> have
> a lot of them so they are my favorite.
>
> Maxim makes some very good ones as well... I've used the MAX308 and 309
> multiplexers
>
> Thanks for the tip (whoever) about the replacement for a 4053... 
> although I have
> not found
> one quite like it yet...
>
> H^) harry
>
> James Patchell wrote:
>
>> I will double that.  I have been using DG201 and DG211 type switches 
>> for a
>> long time now (since 1978), and pretty much stopped messing with the 
>> 40x6
>> switches, except in a few special cases.  The DG series is very easy 
>> to
>> use, and the extra cost in my opinion, is completely justified and 
>> paid for
>> in better performance.


Paul Higgins
email: higg0008 at tc.umn.edu