[sdiy] A (slightly) better VRef?

[Justin Owen]

-----Original Message-----
From: David G Dixon [dixon at mail.ubc.ca]
Received: 21.02.2012 00:09:25
To: 'Mattias Rickardsson'
Cc: synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] A (slightly) better VRef?

>>> I concur.  Use a REF02 or one of it's siblings for this application.
 
>> Or something like a TL431 for a fraction of the price.

> Absolutely.  Heck, even 78L0X is better than using the rails.

OK, consider me warned :)

So, for something like the REF02 are you using that as your central, stable VRef and runnning your other VRefs of of that? e.g. if you need a stable +3.5V and +1.25V and -1.25V - you'd create them from the stable +5V of the REF02?

What then are you using to create those 'sub' VRefs?

Thanks.