There is a set of plans on Softboughs web page that describe the MSP430 day 
board they
gave out that has an integrated temp sensor that has better properties than the 
onboard
sensor (using I2C), however, your bigger problem is that there aren't going to 
be any
semiconductor sensors that will work up to 200degC.  That is simply too hot for 
most/all
silicon.  My company used RTD temperature sensor which is very easy to 
integrate to the
onboard 12bit a/d.  I use the TI: REF200 to generate a constant 100uA current 
and simply
read the voltage across the RTD.  This works very well.  
The softbough design can be found on Softboughs web page under p/n: D413
http://softbaugh.com/ProductPage.cfm?strPartNo=D413
The sensor they use is here:
http://focus.ti.com/docs/prod/folders/print/tmp100.html
Which only goes to 125Deg C
We chose the RTD because of span and accuracy (can go from -200C to whatever w/ 
very
linear response).  However, a thermocouple would work and be much cheaper.  
There are
numerous thermocouple notes online.
Enjoy!
-Mark



-----Original Message-----
From: Dipak Prasad [mailto:[email protected]] 
Sent: Saturday, February 07, 2004 2:19 PM
To: [email protected]
Subject: [Mspgcc-users] Integrated Temperature Sensor


Hello

I was wondering if anyone has used the Integrated Temperature Sensor, and 
would like to get their comments on the accuracy and range (I'm interested 
in the 100C - 200C range but am fairly flexible with accuracy).  I would 
also appreciate any pointers/help in setting it up properly.  I am starting 
a project to develop something similar to a cooking oven/range control 
panel, and any help will be greatly appreciated.

Regards
Dipak




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