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PSoC™ 5, 3 & 1

chmoc_1567941
New Contributor

is that possible to make 3- wire rtd on psoc1???

   

if yes than what is the option for the exitation current for rtd in psoc 1???

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7 Replies
Bob_Marlowe
Expert II

What is RTD???

   

 

   

Bob

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chmoc_1567941
New Contributor

Resistance Temperature Detectors.....PT100

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Bob_Marlowe
Expert II

Have a look at this code example.

   

 

   

Bob

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chmoc_1567941
New Contributor

i read this appnote but my confused in excitation current for 3 wire rtd...thermister dont need excitation current for give temperature.

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Bob_Marlowe
Expert II

Did you see all this documents?

   

 

   

Bob

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chmoc_1567941
New Contributor

yeah i show all the document but still i cant get any solution for 3 wire rtd...it is available for psoc 3-5 but block they are used .it is not available in psoc1 like they are used IDAC componant for excitation current.

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Bob_Marlowe
Expert II

You will have to develop an external current source yourself, controlled by an output pin, preferrably.

   

 

   

Bob

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