LM35 Temperature Sensor

This LM35 temperature sensor is a precise Arduino-compatible sensor for measuring temperature in Celsius. It outputs a voltage proportional to the temperature, making it ideal for DIY electronics, robotics, and IoT projects.

Features of LM35 Temperature Sensor

• Functional range: 0°C to 100°C
• Sensitivity: 10mV per °C
• Output voltage directly proportional to temperature
• High linearity and easy to interface with Arduino

About LM35 Temperature Sensor

The LM35 chip, produced by National Semiconductor, is widely used for temperature measurement. It is part of linear temperature sensors, including thermocouples, platinum resistances, and thermal resistance sensors, suitable for high-accuracy temperature monitoring applications.

Specifications

• Temperature range: −55°C to +150°C
• Good linearity and high sensitivity
• Calibrated directly in °C
• Linear scale factor: +10.0 mV/°C
• Accuracy: ±0.5°C at 25°C
• Operating voltage: 4V to 30V
• Current drain: < 60 µA
• Low self-heating: 0.08°C in still air

Applications

The LM35 temperature sensor can be easily interfaced with Arduino boards using dedicated sensor expansions. Ideal for temperature monitoring, IoT projects, robotics, and DIY electronics projects requiring accurate and linear temperature measurements.

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