Temperature sensors national semiconductor lm35dt precision centigrade temperature sensor 06c accuracy 4v to 30v supply voltage 0 to 100c to 220 case the lm35 series are precision integrated circuit temperature sensors whose output voltage is linearly proportional to the celsius centigrade temperature low cost due to wafer level trimming calibrated directly in celsius low self heating low output impedance linear output precise inherent calibration rated to operate over a