LM35DZ Analog Temperature Sensor

The LM35DZ temperature sensor has an output voltage linearly proportional to the Centigrade temperature. It has an advantage over linear temperature sensors calibrated in Kelvin, as you are not required to subtract a large constant voltage from the output to obtain convenient Centigrade scaling. The LM35 does not require any external calibration or trimming to provide typical accuracies of ±¼°C at room temperature and ±¾°C over a full -55°C to +150°C temperature range. The low output impedance, linear output, and precise inherent calibration of the LM35 make interfacing to readout or control circuitry especially easy. The device is used with single power supplies, or with plus and minus supplies. As the LM35 draws only 60 µA from the supply, it has very low self-heating of less than 0.1°C in still air.

Features

• Calibrated directly in Celsius
• Linear + 10 mV/°C scale factor
• 0.5°C ensured accuracy (at +25°C)
• Suitable for remote applications
• Less than 60-µA current drain
• Low Impedance output, 0.1 R for 1 mA load