Hi Picandmix,
Sorry.But, I just want to know the things. I have done the following things. Please let me know if this ok.
1.My interested range on thermistor is -10C where thermistor resistnace is 42.47K to +70C where thermistor resistance is 2.228K and accuracy needed is 0.1C. For Resistor R1 selection, I am taking Geometric mean for minimum (2.228K) and maximum resistance (42.47K) which results in 9.70K.So, I take R1 as 10K.
If I am right, current flowing on the volatge divider changes with respect to the Thermistor resistance which is not fixed as it depends on temperature. By giving constant current, I think that we can give some linearity to the output. If yes, plaese give me tips to bulid constant current source circuit with less components. Pllease suggest.
Regards,
Muthu