LM35 - Precision Celcius Temperature Sensor [Original]

LM35 Precision Celsius Temperature Sensor IC

The LM35 is an integrated circuit temperature sensor. It provides an output voltage directly proportional to Celsius temperature. This design eliminates complex conversions. The sensor operates across a temperature range from -40°C to +110°C. Initial accuracy is 0.5°C. Current drain is less than 60µA. Its low impedance output facilitates interfacing with microcontrollers. The LM35 series offers direct temperature sensing.

Specifications:

• Sensor Type: Integrated-Circuit Temperature Sensor
• Output Type: Linear, Proportional to Celsius Temperature
• Calibration: Directly in Degrees Celsius
• Temperature Range: -40°C to +110°C
• Initial Accuracy: 0.5°C
• Current Drain: < 60µA
• Output Impedance: Low

Key features and benefits:

• Calibrated directly in Degrees Celsius.
• Temperature measurement range: -40°C to +110°C.
• Initial accuracy: 0.5°C.
• Current drain: less than 60µA.
• Low impedance output.
• Output voltage directly proportional to Celsius temperature.
• No constant voltage subtraction required, unlike Kelvin-calibrated sensors.

Applications:

• Home and office automation systems
• General temperature-sensitive electronic projects
• Industrial process control and monitoring
• HVAC systems
• Environmental monitoring

Frequently Asked Questions:

Q: What is the typical operating voltage range for the LM35?
A: The LM35 operates with a supply voltage between 4V and 30V.

Q: Does the LM35 require external components for basic operation?
A: The LM35 can operate without external components for basic temperature sensing, though a bypass capacitor is often recommended for stability.

Q: How is the output voltage of the LM35 interpreted?
A: The output voltage is directly proportional to the Celsius temperature, with a scale factor of 10 mV/°C. For example, 250 mV corresponds to 25°C.

Q: Can the LM35 be used for negative temperature measurements?
A: Yes, the LM35 measures temperatures from -40°C to +110°C, supporting negative temperature readings.

Package Includes:

*Image shown is a representation only.

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