Thanks for the tips.
I bought the sensors with temp specs in mind. Unfortunately, I needed something that would go from freezing to around 350F. The sensors are for a car telemetry system and 350F can be expected at time for some underhood temps.
I do have semi-success to report. Last night i hooked the sensor up in voltage divider configuration (sensor in the R2 position) with a 1000Ohm resistor. I happened to have a warm room temp of ~80-84F and got a correct voltage reading of ~700 (roughly 3.14V). I figure I'll use a lookup table to do the conversion for a proper display. 32F-350F is 318 temp steps (1deg resolution). A lookup table/array would only be on the order of 318 * 2 pieces. Each integer is 2 bytes so that's about 1272bytes. Which isn't horrible. Now I just have to figure out how to access the array at speed and do the between a and b calculations.
a start...
int reading = analogRead(temppin);
int a = whatever the low threshold is...ie 32F
int b = whatever the high threshold is...ie 350F
if the reading is lower than a, display an L for low
if the reading is higher than b, display an H for high
for (i = 0; ( (reading < lookuptable*[0]) && (reading <= lookuptable[i+1][0]) ); i ++){*
_ outputvariable = lookuptable*[1];_
_} _
print outputvariable;
_...cycling over 318 possibilities may seem slow, but temperatures don't change that fast (at least not in my application). I might only sample the temp every 20 ms or so.*_