Part Number: ADS1014
My customer want to use ADS1014 to detect temp of thermistor resistor ? is it possible without other component to achieve it and what is the schematic looks like ? thanks you very much!
In reply to Tom Hendrick:
In reply to KJ Liu:
In reply to Joseph Wu:
The schematic is as below ,
I still need some more information about the system.
1. What temperature range do they want to measure? This is important because the thermistor resistance is very sensitive to temperature at cold values or hot values. Even with the linearization resistor, limiting the range may help the absolute temperature accuracy of the measurement.
2. Is this an NTC or PTC thermistor? Do you have a part number that they intend to use?
3. How accurate is the 3.3V supply? The resistance measurement accuracy is dependent on the gain error of the ADC, but it is also dependent on how accurate the 3.3V supply. If the 3.3V supply is not accurate, then it may be better to use a 2-channel device like the ADS1015, and make measurements on the 10k resistor and the thermistor, using a ratiometric measurement.
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