LM35 Temperature Sensor

The LM35 Temperature Sensor is a popular precision integrated-circuit temperature sensor that provides an output voltage linearly proportional to the Celsius temperature. Unlike thermistors or other analog sensors, the LM35 directly outputs temperature in degrees Celsius, making it easy to interface with microcontrollers like Arduino, Raspberry Pi, ESP32, and others without the need for complex calibration or conversion formulas. It operates over a wide temperature range with high accuracy and low self-heating, making it ideal for applications in environmental monitoring, industrial control, weather stations, and consumer electronics.

Key Features:

• Linear output voltage proportional to temperature in °C

• Wide temperature measurement range: -55°C to +150°C

• High accuracy ±0.5°C at room temperature

• Low self-heating and low power consumption

• Calibrated directly in Celsius, no external calibration required

• Operates with 4V to 30V power supply

• Simple analog output for easy interfacing

• Fast response time

• Compatible with Arduino, Raspberry Pi, ESP32, and other microcontrollers

Specifications:

• Model: LM35

• Temperature Range: -55°C to +150°C

• Accuracy: ±0.5°C (typical at 25°C)

• Output Voltage: 10 mV/°C

• Supply Voltage: 4V to 30V DC

• Operating Current: 60 µA (typical)

• Response Time: < 1 second

• Operating Temperature: -55°C to +150°C

• Package: TO-92, SOIC-8, or other package types

• Dimensions: Varies by package type