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psoc adc
Hi all,
I'm interfacing a thermocouple (type K)to a CY8C26443 chip. Thermocouple to the INSAMP (Ref = AGND) then to the ADCINC12 (REFMUX = 2BG +/- BG). I've applied the (Correlated double Sampling and IIR software filter) to nuteralize the offset voltages and signal noise. The main problem is: i get a correct readings out of the ADC (-800 to +7FF). But, How to accurately convert this value to the corresponding millivolts? I'm a newbie to PSoC programming and i'm really confused. (N.B. REFLO = 1.3V, AGND = 2.6V, REFHI = 3.9V).
Please kindly advise ASAP as i've been stuck at this stupid point for the last 3 days.
Thank you very much for your time.
Yours,
Hi all,
I'm interfacing a thermocouple (type K)to a CY8C26443 chip. Thermocouple to the INSAMP (Ref = AGND) then to the ADCINC12 (REFMUX = 2BG +/- BG). I've applied the (Correlated double Sampling and IIR software filter) to nuteralize the offset voltages and signal noise. The main problem is: i get a correct readings out of the ADC (-800 to +7FF). But, How to accurately convert this value to the corresponding millivolts? I'm a newbie to PSoC programming and i'm really confused. (N.B. REFLO = 1.3V, AGND = 2.6V, REFHI = 3.9V).
Please kindly advise ASAP as i've been stuck at this stupid point for the last 3 days.
Thank you very much for your time.
Yours,
