Temp sensor for ID-1390 what is it?

[wier@calcite.rocky.edu]

>Mark and all,
>You are correct, the manual says nothing about what the potted diodes are!
>I had the exact same question today! So this morning I tried 2 switching
>diodes (1N914/1N4148) that seemed to work.  I have not determined if they
>are more linear than the original but all this will give you a starting
>point. Anyone know what diodes are specifically designed to offer a linear
>temp resistance?
>Tim
>W1TCC
>Cambridge MA
>

Burr-Brown has an app note on this ...

http://www.burr-brown.com/applications/ABs.html

plus a lot of other interesting stuff.

They specifically mention the Motorol MPS102 temperature
sensing diode...

On other places on the web, like

http://validyne.com/diodeap.htm

have some interesting information.

73's de WB5KXH

--Bob Wier

wier at calcite.rocky.edu

Sponsored by the City of Tempe 

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