[sdiy] low supply voltage dual opamp ??? not a OPA690..

Paul Schreiber synth1 at airmail.net
Wed Sep 21 14:33:46 CEST 2016


Paul S.

-----Original Message-----
From: Neil Johnson [mailto:neil.johnson71 at gmail.com] 
Sent: Wednesday, September 21, 2016 6:53 AM
To: Jean-Pierre Desrochers
Cc: Paul Schreiber; synth-diy
Subject: Re: [sdiy] low supply voltage dual opamp ??? not a OPA690..

Jean-Pierre Desrochers <jpdesroc at oricom.ca> wrote:
> I'm back guys with my request..
> Paul suggested it was an OPA690.
> Well it looks it's not.
> The OPA690 is a single opamp.
> The one I need to replace is a dual opamp (same pinout as the TL072.. 
> not TL071).
> Both outputs are on pins 1 and 7.
> Supply pins are 4 and 8.

It might be a Microchip part.

> So I'm back where I was from start.
> I need a dual opamp that:
> - runs on 5vdc
> - low power (powered with AAA battery 1.5v stepped up to 5vdc for all
> circuit)
> - 8SOIC package
> Any idea the ship that would do ??




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