[sdiy] SSM2164 last time buys

[David]

It's interesting. In my interaction with Nyle in my Synthasystem project, I
asked Nyle why his circuits were essentially all discrete except for a few
op amps. His comment was he didn't want to be locked into a specialty chip.
He wanted to be able to build his circuits 30 years down the road and not
worry about a chip being obsolete. Here I am 35 years later and building his
designs with no problem.

The one exception is the MC1495 multiplier in his Ring Modulator. Although
Arcade Game Chips has a stock of 30,000, or so he tells me :)

David

-- -----Original Message-----
-- From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-
-- bounces at dropmix.xs4all.nl] On Behalf Of megaohm
-- Sent: Thursday, February 24, 2011 11:13 PM
-- To: Tom Wiltshire
-- Cc: synthdiy diy
-- Subject: Re: [sdiy] SSM2164 last time buys
-- 
-- On Thu, Feb 24, 2011 at 9:04 AM, Tom Wiltshire <TOM at electricdruid.net>
wrote:
-- >
-- > Analog Devices have listed SSM2164 as "Still In Production but Not
Recommended for
-- New Designs", and have "last time buy" by the available product models
(leaded devices
-- became obsolete some while ago).
-- >
-- 
-- That sucks. I was going to start experimenting with that IC more
seriously.
-- I hadn't before because I assumed it would be obsolete soon. I didn't
-- think it would be this soon!!!
-- 
-- At least there is the 13700 still. With the right circuit I actually
-- prefer these over any specialty IC for VCA circuits.
-- But...it's just a matter of time before these are gone, too.
-- Time to go discrete.
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