[sdiy] looking for a quad opamp

greg montalbano greg.montalbano at ucop.edu
Wed Aug 27 17:32:09 CEST 2003


The quad 741 (LM348) is available for 26 cents each in quantities of ten from
Jameco  -- data sheet at:
http://www.jameco.com/Jameco/Products/ProdDS/23915.pdf
Don't know if they're what you're after....


~GMM

At 04:57 PM 8/27/03 +0200, you wrote:
>Unfortunately the 4136 has some odd pinout.
>I have seen quad 741 ICs, perhaps they still exist.
>
>m.c.
>
> > -----Original Message-----
> > From: jhaible at debitel.net [mailto:jhaible at debitel.net]
> > Sent: Mittwoch, 27. August 2003 16:44
> > To: synth-diy at dropmix.xs4all.nl
> > Subject: [sdiy] looking for a quad opamp
> >
> >
> > I'm looking for a quad opamp to replace the LM324's in the PolyKorg
> > Envelopes.
> >
> > Requirements:
> > =============
> >
> > Unexpensive (need 25 of these)
> >
> > Considerably faster than LM324 ( 10V/us slew rate would be fine)
> >
> > Pin compatible with LM324 / TL084 etc.
> >
> > Low input current (as 324, or better)
> >
> > Single supply opertaion 15V with input common mode range including 0V
> >   and output swing down to ca. 0.5V without load
> >
> >
> > The last requirement will not allow classic BiFet opamps
> > like TL084 or LF347.
> >
> > So I guess I have to look for a rail-to-rail quad opamp.
> > Any recommendations?
> >
> > Thanks,
> >
> > JH.
> >
> >
> >
> >
> > -------------------------------------------------
> > debitel.net Webmail
> >



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