[sdiy] SSM2164 Obsolescence Update

karl dalen dalenkarl at yahoo.se
Sat Jun 11 02:37:17 CEST 2011

I agre with Tom that he agrees with me but i disagree that i
dont agree with myself anymore so often!

Anyhow, all that humans need a a simple 5 legged bipolar bidirectional
10 decade linear range current something. That would solve all problems. :)


>Tom Wiltshire <tom at electricdruid.net>:
> > On Fri, Jun 10, 2011 at 10:46 AM, Tom Wiltshire <tom at electricdruid.net>
> wrote:
> > I agree with Karl - I think we ought to expect better
> than the CA3280. This is the 21st century! Has there been no
> progress?!
> > 
> > 
> > 
> > What would you guys improve about the 3280?
> > Fill us in!
> > Have you designed a VCA that performs better than one
> based on the 3280?
> > Prove it! 
> No, course I haven't!
> Am I a chip designer? No, of course not!
> Does that mean I don't think that nothing has improved or
> could be improved since the CA3280 was designed? (Early
> seventies?) - No, absolutely not. I'm sure that in the same
> way that the SSM2164 is a big step up from chips that went
> before it (like the SSM2024) if there were sufficient
> pressure on designers, there would be similar improvements
> to be made with the CA3280, even if they were only
> improvements in the quality of process, without changing any
> of the actual design elements. Although I suspect there are
> also improvements to be made at the design level.
> Proof? Look at the way that everything else has moved on.
> Why should analog be any different?
> If it hasn't moved on, it's because all the development
> dollars have been spent on digital, not because analog has
> reached some point of perfection where no further
> improvement is possible.
> Only my viewpoint, your mileage may vary, value of
> investments can go down as well as plummet, etc etc...
> T.
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