LM35 Analog Temperature Sensor (Good Quality)
Specifications:
- Model: LM35
- Temperature Range: -55°C to +150°C
- Accuracy:
- ±0.5°C at 25°C
- ±0.8°C over -55°C to +150°C
- Output Voltage: 10mV per °C
- Operating Voltage: 4V to 30V DC
- Current Consumption: 60µA
- Response Time: Less than 1 second
- Package Type: TO-92, SO-8, TO-220
- Linear Output: 0.1V to 1.5V corresponding to 0°C to 150°C
- Self-heating: Less than 0.1°C in still air
Package:
1x LM35 Analog Temperature Sensor
Product Description
Features:
- High Accuracy: Provides precise temperature measurements with an accuracy of ±0.5°C at 25°C.
- Linear Output: Analog output proportional to temperature, making it easy to interface with analog-to-digital converters (ADCs).
- Wide Temperature Range: Measures temperatures from -55°C to +150°C, suitable for a variety of applications.
- Low Power Consumption: Consumes minimal current, ideal for battery-powered devices.
- Easy Interfacing: Can be easily integrated into microcontroller-based systems for temperature monitoring and control.
- Self-Heating Effect: Minimal self-heating ensures accurate temperature readings.
- Various Packaging Options: Available in different package types to suit various mounting requirements.
The LM35 is a precision integrated-circuit temperature sensor, whose output voltage is linearly proportional to the Celsius (Centigrade) temperature. Unlike other temperature sensors, the LM35 does not require any external calibration or trimming to provide accurate temperature readings. It offers a linear output of 10mV per °C and operates over a wide temperature range of -55°C to +150°C. Its low power consumption and minimal self-heating make it suitable for a wide array of applications, from environmental monitoring to consumer electronics.
The sensor is easy to interface with a variety of microcontrollers and ADCs, making it a popular choice for temperature measurement in DIY projects, industrial applications, and scientific research. The LM35 is available in different packaging options, such as TO-92, SO-8, and TO-220, providing flexibility for different mounting requirements.
Applications:
- Home Automation: Used in smart thermostats and HVAC systems to monitor and control room temperatures.
- Environmental Monitoring: Measures ambient temperature in weather stations and environmental monitoring systems.
- Consumer Electronics: Integrated into devices like air conditioners, refrigerators, and ovens for temperature control.
- Industrial: Used in machinery and equipment to monitor operating temperatures for safety and efficiency.
- Healthcare: Employed in medical devices to measure body and ambient temperatures.
- Automotive: Monitors engine and cabin temperatures in vehicles.
Frequently Asked Questions (FAQ):
How do I connect the LM35 to a microcontroller?
- Connect the VCC pin to a 5V power supply, the GND pin to the ground, and the output pin to an analog input pin on the microcontroller.
Can the LM35 measure negative temperatures?
- Yes, the LM35 can measure temperatures as low as -55°C. However, for temperatures below 0°C, additional circuitry might be needed to handle negative voltage output.
Is the LM35 suitable for outdoor use?
- The LM35 can be used outdoors if it is properly protected from environmental factors like moisture and dust. Using a waterproof enclosure is recommended for outdoor applications.
What is the response time of the LM35?
- The LM35 has a response time of less than 1 second, making it suitable for applications requiring quick temperature measurements.
How do I calibrate the LM35 sensor?
- The LM35 does not require external calibration. It is factory calibrated to provide accurate temperature readings within its specified accuracy range.