[volt-nuts] LTZ1000 reference appnote question

[Mitch Van Ochten]

Positive input voltage range for an LT1006 is typically 1.2V below the 
positive rail.

mitch


----- Original Message ----- 
From: "Fabio Eboli" <fabioeb at quipo.it>
To: <volt-nuts at febo.com>
Sent: Wednesday, November 07, 2012 7:02 PM
Subject: [volt-nuts] LTZ1000 reference appnote question


> Hello, in this thread on eevblog:
>
> http://www.eevblog.com/forum/projects-designs-and-technical-stuff/does-anyone-know-what-this-diode-is-for/
>
> a guy named DiligentMinds.com asked the question
> about why there is a 1N4148 diode on the output of
> the opamp in the LTZ1000 reference circuit, the one
> designed by Jim William in the appnotes, that can
> also be seen on the first page of the datasheet:
>
> http://cds.linear.com/images/product/1203_app_1.JPG
>
> Now I'm curious,
> anybody knows the answer?
>
> Thanks,
> Fabio.
>
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