mad diode chips

[tomg]

Sounds like it's a go...the vcf6 uses 12.

Tom

> << For those of you interested, click on this for an auction for 125x
MAD1109
>  diode array chips on ebay.. dont know if you can use these instead of the
>  1108 that everyone made a fuss abt last month but $1bid.. maybe useful to
>  someone out there.. >>
>
> Those may indeed be useful to some.  The MAD1108 is eight isolated diodes
on
> one substrate in a 16-pin package.  The MAD1109 is seven isolated diodes
on
> one substrate in a 14-pin package.  Tom G. uses a pair of the MAD1108's on
> his diode-ladder filter boards.  I don't know if all 16 of the diodes are
> used by this design (I haven't seen the schematic).  How many diodes are
> needed in a 4-pole diode ladder filter?  If it's 14 or less, then the
> MAD1109's would be useful.  However, if you want to just plug the parts
into
> Tom G's already-designed PCB's, you'll need the MAD1108's.
>
> Michael Bacich