[sdiy] low input bias current opamps

[David G Dixon]

Sorry, but I have several more responses to this highly impertinent
question:

1) Why does it matter to you?
2) Who gives a shit?
3) What business is it of yours?
4) The chips I want are through-hole, but Intellijel only builds in
surface-mount format, so do the math.

I'm just asking if any of you know of a decent quad with low input bias that
isn't LF444, and isn't one of those damn low-power p's of s.

If you know the answer, I'd love to hear about it.  If you want a free Doc
Sketchy ASR board for your trouble, I'm happy to make one for you.

Otherwise, I'd respectfully ask you to mind your own damn business.

In any case, the answer is yes.  I'm making all sorts of money.  $75 from
some dude in Oregon for a handmade, stuffed and tested ASR board.  So that
works out to about half of the minimum wage for the 3 or 4 hours it'll take
me, after my expenses.  Should I donate it to the list?




> -----Original Message-----
> From: p. hendricks [mailto:ph at comcast.net] 
> Sent: Tuesday, August 14, 2018 10:32 PM
> To: David G Dixon; 'SDIY List'
> Subject: Re: [sdiy] low input bias current opamps
> 
> Will this be used in a commercial product?
> You may want to clarify the use further, so it doesn't sound 
> like an unpaid consulting job. Are you getting paid for this? 
> If so, what is the compensation for this?
> 
> On 8/14/18 8:43 PM, David G Dixon wrote:
> > Hey Team,
> >
> > I'm looking for opamps with the following properties:
> >
> > 1) Through-hole
> > 2) Quad opamp
> > 3) 14-DIP package
> > 4) High power range (+/-18V, say)
> > 5) Low input bias current (10 pA or less typical)
> > 6) Pin-compatible with TL074, etc.
> > 7) Not LF444 (cuz they all seem to be defective)
> >
> > So, basically, I'm looking for a suitable alternative for LF444.
> >
> > So, here are my questions:
> >
> > A) Do you know of such a thing
> > B) How does one go about finding such a thing, generally?
> >
> > Thanks in advance!
> > Dave (Floating VCA) Dixon
> >
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> 
>