Hi,

What temperature sensors would you recommend for:

-Fast Response Time (90% of actual temp)
-Relatively Cheap (This is a school project, so nothing that costs $100)
-EASY to program for using PIC16F877 - This is a must! Themistors are =
looking to be very difficult to program for, for a nice accuracy
-Accuracy of sub +- 1degreeC

I've looked at the LM335 solution, but the response time is very long =
compared to other things, and so is the maxim chip. I've also messed =
around with thermistors, just printing out an ADC value and they seem to =
vary the most, but they are hard to program for as they are non-linear, =
and they change over age. RTD's look good, but i can't get a definate =
price on these things yet, and they are linear with a fast response =
time. Thermocouples I haven't really thought about, though i don't know =
if  they have thermocouples for the range of -50C to 100C with a nice =
accuracy, fast response time and easy programming. Are thermocouples =
linear?=20

Are there any other solutions i haven't thought of? What are your =
opinions of solution i need?

Thanks
-Peter

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