[sdiy] Strange but very useful OPamp design! :-)

[karl dalen]

--- harrybissell <harrybissell at prodigy.net> skrev::
> Hi Karl:
> 
> TI made an octal version of the TL07x series... don't know if it
> is still available. It had two inputs to each opamp so I guess your
> patent application is safe...
> 
> ... when do you start shipping ???  (I wanna buy some !!!  :^)

As soon as i found about 2-3 million USD to do the masks and put
up the volume fabrication! In other words i will never be able to
do it, but perhaps one of the elephants could pick up the idea
since its public domain now! :-)

I think the idea is neat!

Reg
KD

> 
> H^) harry
> 
> karl dalen wrote:
> 
> > I wonder , why isnt there any hexa and,octa opamps?
> > I think it would be interesting, you could sell for instance
> > a octal with inverting only or non inverting only inputs,
> > or half inverted and the other half non inverted!
> >
> > The idea would be that there would be two variants to buy
> > one where the inverted and noninverted would be summing
> > floating inputs with the regular feedback resistor to set gain
> > and a version with very high impedance on inverted and
> > noninverted devices both variants used as buffer stages
> > with gain of 1.
> >
> > The manufacturer could mix devices in a package, for instance
> > in a SO16 you could fit 4 floating inverted inputs, 2 non
> > inverted buffers and 2 floating non inverted inputs.
> >
> > Applications?
> >
> > Well many, as many as there are today for regular OPamps.
> > Others where they would ecxell ordinary OPamps, for instance
> > buffer stages in CV muxes, headphone and line driver buffers,
> > non resistor dependant signal inverters, integrators etc, etc.
> >
> > Reg
> > KD
> 
>