10K thermister doesn't mean a whole lot. You need to know the type and you know that the resistance at 25C is 10K.
You can do:
1. Lookup
2. use the Steinhart-Hart eqn
3. Use a dedicated thermister IC which may linearize for you. (See linear technology)
4. Piecewise linearization
A lot of times the thermister range that you need is intentionally small so a simple voltage divider works.
Application notes on https://www.analog.com
You can take ADC readings with the thermistor at several different temperatures to calibrate the system, scale the readings to degrees F for display, then use interpolation to determine/display other temperatures.
You can take ADC readings with the thermistor at several different temperatures to calibrate the system, scale the readings to degrees F for display, then use interpolation to determine/display other temperatures.
Figure out just what T range your concerned about. The entire range will be a lot tougher.
The simplest is a voltage reference, a fixed resistor and the thermister to ground selected so your A/D has a good range and meets resolution requirements.min and max temperature. It may not meet one and you;ll have to change your method.
The simplest is a voltage reference, a fixed resistor and the thermister to ground selected so your A/D has a good range and meets resolution requirements.min and max temperature. It may not meet one and you;ll have to change your method.
Why would anyone want to use a thermistor for anything but crude min/max limits? There are other easier, inexpensive, and WAY more accurate (repeatable, reliable, and precise) ways to measure temperature!
Microwave oven temperature probes and ovens use thermisters.
The OP/TS really has to state what his problem is.
1. Is it the conversion of a number read from the A/D to temperature
2. Is it the electrical interface? The simplest is the voltage divider
3. Is it the display of any number on an LCD display.
I think we have answered the perceived question in general terms based on the information provided.
Why would anyone want to use a thermistor for anything but crude min/max limits? There are other easier, inexpensive, and WAY more accurate (repeatable, reliable, and precise) ways to measure temperature!
I would, but the OP never mentioned what the application is, so it would be a waste of time. Google is easy enough to use...
However, RTDs, and monolithics such as LM34 come to mind. Just about anything is more accurate and easier (and more linear) than a simple thermistor!
For mass production -- like the microwave ovens previously mentioned -- then it might be worth figuring out how to implement a super-cheap thermistor.