Description

Outputs 10mV per Degree that can also be read directly on multimeter or read in to microcontroller. For example at 30 degree celcius it will output 300mV at linear scale.

The LM35 series are precision integrated-circuit temperature sensors, whose output voltage is linearly proportional to the Celsius (Centigrade) temperature. The LM35 thus has an advantage over linear temperature sensors calibrated in ° Kelvin, as the user is not required to subtract a large constant voltage from its 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 to +150°C temperature range. Low cost is assured by trimming and calibration at the wafer level. The LM35’s low output impedance, linear output, and precise inherent calibration make interfacing to readout or control circuitry especially easy. It can be used with single power supplies, or with plus and minus supplies. As it draws only 60 µA from its supply, it has very low self-heating, less than 0.1°C in still air. The LM35D is rated to operate over a 0° to +100°C temperature range.

Features

•    Calibrated directly in Celsius (Centigrade)
•    Linear + 10.0 mV/ C scale factor
•    0.5 C accuracy guaranteeable (at +25 C)
•    Rated for full -55 to +150 C range
•    Suitable for remote applications
•    Low cost due to wafer-level trimming
•    Operates from 4 to 30 volts
•    Less than 60 A current drain
•    Low self-heating, 0.08 C in still air
•    Nonlinearity only 1/4 C typical
•    Low impedance output, 0.1 W for 1 mA load