TEMPARATURE SENSOR
LM35

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 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. Low cost is assured by trimming and calibration at the wafer level

Features:

• Operates from 4 to 30 volts
• Less than 60 A current drain 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
• Low self-heating, 0.08°C in still air
• Nonlinearity only ±1/4°C typical
• Low impedance output, 0.1 ? for 1 mA load