The TMP36 is a low voltage, precision centigrade temperature sensors, which provides an analog voltage output that is linearly proportional to the Celsius (Centigrade) temperature. Every GX36 chip is factory calibrated, so no external calibration is required, and the typical accuracy is ±1°C at +25°C and ±2°C over the −40°C to +125°C temperature range.
The low output impedance of the TMP36 and its linear output and precise calibration simplify interfacing to temperature control circuitry and ADC. The sensing devices can be powered from a single-supply of 2.7 V to 5.5 V. The supply current is less than 50µA, providing very low self-heating effect, less than 0.1°C in still air. In addition, a shutdown function is provided to reduce supply current to less than 0.5 μA.
The TMP36 is specified from −40°C to +125°C, provides a 750 mV output at 25°C, and operates up to 125°C from a single 2.7 V supply. The output scale factor of the TMP36 is 10 mV/°C.