LM35DZ PRECISION TEMPERATURE SENSOR

Description

The LM35 datasheet specifies that this ICs 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 Centi-grade scaling. The LM35 does not require any external calibration or trimming to provide typical accuracies of ±1⁄4˚C at room temperature and ±3⁄4˚C over a full −55 to +150˚C temperature range.

LM35 Features

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