10x a lot!
so as I understand I can measure the voltage drop in any temp ? should all
diodes react the same or should I calibrate each circuit?

Regards

Tal Bejerano
AMC - ISRAEL


-----Original Message-----
From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On
Behalf Of Jinx
Sent: Wednesday, May 22, 2002 12:13 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE]: 1N4148 as temp probe?


> Companies like Maxim make chips that will use a transistor
> as a temperature sensor for use inside PC's, as the Pentium
> chips have a transistor temperature sensor built in to allow
> control of fans

Like this

http://www.national.com/ads-cgi/viewer.pl/ds/LM/LM84.pdf

from

http://www.national.com/appinfo/tempsensors/

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