[sdiy] LS318 / LS312

[David Ingebretsen]

By this announcement George, can we assume you have confirmed the LS318 is a
"drop in" replacement for the SSM2210?

If so, that is good news (at least until Linear discontinues them :) ).

David


~~ -----Original Message-----
~~ From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-
~~ bounces at dropmix.xs4all.nl] On Behalf Of George Hearn
~~ Sent: Tuesday, December 08, 2009 1:22 PM
~~ To: 'Synth DIY'
~~ Subject: RE: [sdiy] LS318 / LS312
~~ 
~~ Just ordered 50 off LS318 matched 'Log conformance' NPN in SOIC from
~~ Linear
~~ Systems in the US.  I can spare a few if anyone needs 'em.  The rest
going
~~ into my VCOs in place of the obsoleted SSM2210.  George
~~ 
~~ -----Original Message-----
~~ From: synth-diy-bounces at dropmix.xs4all.nl
~~ [mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of George Hearn
~~ Sent: 07 December 2009 20:42
~~ To: 'Andre Majorel'
~~ Cc: 'Synth DIY'
~~ Subject: RE: [sdiy] LS318 / LS312
~~ 
~~ > 1. Why both the LS318 and LS312 ? Isn't the LS318 the more
~~ > interesting NPN pair since log conformance is the hard part ?
~~ 
~~ Not sure which one will make the better log converter yet!  LS312 has
~~ better
~~ matching and stability with temperature specifications yet LS318 is
listed
~~ as a log conformance matched pair so we'll see by experimentation.
~~ 
~~ > 2. Do you actually *want* them in SOIC ? Because they appear to be
~~ > available in DIP.
~~ 
~~ I like SMT for projects and one can always get a SOIC to DIL adapter for
~~ prototyping.  I make tiny VCO modules that previously used the SSM2210
~~ device in SOIC that I need to replace and these chips look like they
could
~~ be a drop in replacement.  George
~~ 
~~ www.hearnmorley.com
~~ 
~~ 
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