Hey,
I designed the following circuit.
The resistors (R32, R33) and NTC thermistor have Resistance's tolerance of 1%.
I'd like to ask a few questions please.
1.
The ADC supports 12bit resolution  does it mean that its max error would be 1/(2^12) = 0.024% ?
2.
The way which I tell the temperature is as follows:
The tolerance of B is ±3%.
T is the NTC Thermistor's temperature.
R is the thermistor's resistance, which I calculate using the ADC and the following formula:
To what extent of accuracy can I tell the temperature of the NTC thermistor, considering all the above data?
3. Would you consider this design good enough for temperature sensing?
Thank you very much
I designed the following circuit.
The resistors (R32, R33) and NTC thermistor have Resistance's tolerance of 1%.
I'd like to ask a few questions please.
1.
The ADC supports 12bit resolution  does it mean that its max error would be 1/(2^12) = 0.024% ?
2.
The way which I tell the temperature is as follows:
The tolerance of B is ±3%.
T is the NTC Thermistor's temperature.
R is the thermistor's resistance, which I calculate using the ADC and the following formula:
To what extent of accuracy can I tell the temperature of the NTC thermistor, considering all the above data?
3. Would you consider this design good enough for temperature sensing?
Thank you very much
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