LM35 Analog Temperature Sensor

LM35 Precision Centigrade Temperature Sensor

The LM35 is an analog integrated-circuit temperature sensor whose output voltage is linearly proportional to the Celsius (Centigrade) temperature. Unlike thermistors, it requires no complex mathematical curve fitting or lookup tables—simply read the analog voltage and divide by 10 mV to obtain the temperature in degrees Celsius.

Specifications

• Calibrated directly in Celsius (Centigrade)
• Linear scale factor: +10.0 mV/°C
• Measurement Range: 0°C to +100°C (expandable to -55°C to +150°C with negative bias)
• 0.5°C ensured accuracy at +25°C
• Operating Voltage: 4V to 30V DC
• Low quiescent current: less than 60 μA