ADC input multiplexing

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Anonymous
Not applicable

I am using PSoc1 series Cy8c28452, I am using it to measure temperatue using a 'K' Type thermocouple. For Reference temp I am using a simple diode which is connect to Port P0.5.  the thermocuple Port pins are P0.0 and P0.1. I am using EzADC user module as I found it to be quite impressive, with offset calibration and corelated double sampling . My problem is  how do I multiplex the input of ADC between the diode (Room Temp0 and the Thermocouple output which is  thro' an Instrumention amp module.(INSAMP)

   

 

   

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Bob_Marlowe
Level 10
Level 10
First like given 50 questions asked 10 questions asked

There is an AMUX component that could perform what you need, it would be very helpful for us (saving time) when you post your complete project here. To do so, use Designer -> File -> Archive Project (minimal) and attach the resulting file here.

   

 

   

Bob

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ETRO_SSN583
Level 9
Level 9
250 likes received 100 sign-ins 5 likes given

From the ap note here is the mux being used -

   

 

   

 

   

 

   

www.cypress.com/

   

PSoC 1 - Using Correlated Double Sampling to Reduce Offset, Drift, and Low Frequency Noise

   

 

   

Regards, Dana

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