[sdiy] CA3280 sources -- Re: CA3080 - what to do?

john mahoney jmahoney at gate.net
Mon Aug 16 18:00:50 CEST 2004


As Don knows, I've recently gone 3280 hunting. Sources for the CA3280 are
fairly limited -- Intersil lists only Arrow and Avnet. You won't find them
listed at Mouser, Jameco, or Digikey, and forget about the surplus vendors.
Here's what I found:

Arrow lists them for $4.03 each, but with a 6 week lead time.
http://www.arrow.com/
Avnet sells them for $3.636, but the minimum order quantity is 500.
http://www.em.avnet.com/
Newark sells them, but see below.

The best sources are:
Small Bear Electronics, at $3.95 each. http://www.smallbearelec.com
And finally, Jim Patchell is (was) letting some go for $4 each, "which is
better than the 100 piece price from Newark." I'll bet his shipping &
handling fee is less than Small Bear's. ;-)
--
john


----- Original Message ----- 
From: "Don Tillman" <don at till.com>
To: "Fredrik Carlqvist" <ifrc at iar.se>
Cc: <synth-diy at dropmix.xs4all.nl>
Sent: Monday, August 16, 2004 11:26 AM
Subject: Re: [sdiy] CA3080 - what to do?


>    > From: "Fredrik Carlqvist" <ifrc at iar.se>
>    > Date: Mon, 16 Aug 2004 10:32:53 +0200
>    >
>    > I use a lot of CA3080. It is my favorite OTA. Now I hear Intersil
>    > will cancel them. Are there any other producers of CA3080 or
>    > similar OTA's out there? Or should I now buy 1000 CA3080?
>
> Use a CA3280.  It's a much better chip, it has a great distortion
> compensation circuit, it has a nice noise spec (while the CA3080 has
> no noise spec), and it comes in pairs.
>
>   -- Don
>
> -- 
> Don Tillman
> Palo Alto, California
> don at till.com
> http://www.till.com
>



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