I am interested in measuring temperatures using the LM34 or 35. The LM34 measures in Farenheit, while the LM35 does degrees Centigrade. Here is the datasheet:http://www.national.com/pf/LM/LM35.htmlhttp://www.national.com/ds.cgi/LM/LM35.pdf
The temp sensor will output a voltage of 200mV at 20°C, 500mV at 50°C, 1000mV at 100°C etc. You get the picture.
How exactly do I have to connect the sensor to the Arduino's analog input? What kind of resolution can I expect? 5V/10bit = 5V/1024 = 5mV, or 0.5°C? Is there a way to improve this without using an op amp?