[sdiy] BA6110's

[Jeff Farr]

x0x-er's will only be interested if it's the SIL package varity and
not from the batch "420 178".  If it meets these two requirements I'll
buy afew off ya (unless you want to share where you founf 'em).

On 1/6/06, Amos <controlvoltage at gmail.com> wrote:
> Ah-so... my original, off-list reply was correct, and then the
> over-enthusiastic public reply was wrong.  So it goes!  At least I have
> learned a thing or two from the subsequent replies...  thanks
>
>
> On 1/6/06, Oakley Sound <tonyallgood at btinternet.com> wrote:
> > > BA6110's are used
> > > in the majority of 303 clones and were discontinued several years ago.
> >
> > Well I used them in the Oakley TB3030, my own clone of the sound engine,
> > but this is the only one I know of. I got the tip of trying out the Rohm
> > device originally from Colin Fraser.
> >
> > But as I have said before, the BA6110 is not a drop in replacement since
> > the IC pins do different things. Also, the Iabc pin sits 1.2V above the
> > negative rail unlike the BA662 which sits at 0.6V. This makes a lot of
> > difference to the TB303 as it happens.
> >
> > The TB3030 had two different layouts to cope with the differences
> > between the 662 and 6110. The xobox does something similar I believe and
> > uses some current mirror thingy to do the Iabc drive correction. I
> > simply used an extra resistor.
> >
> > I have noticed that some Analogue Solution's Roland clone stuff has the
> > BA662 replaced with a BA6110.
> >
> > That said the BA6110 is an excellent device. Low offset, high Gm and
> > optional linearisation similar to the 3280. Shame it was discontinued.
> > It is, however, very easy to kill. More than a mA out of its Iabc pin
> > will kill it.
> >
> > Tony
> >
> > www.oakleysound.com
> >
>
>