On 11/07/2012 06:02 PM, Fabio Eboli wrote: > 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?
I believe it it to prevent negative lockup of the circuit output upon start.
--
Bob Smither, PhD Circuit Concepts, Inc.
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