LM35 Temperature Sensor

The LM35 is a precision temperature sensor with an analog output proportional to the temperature in degrees Celsius. This sensor offers high accuracy and linearity, making it ideal for a wide range of temperature measurement applications in both commercial and industrial environments. The LM35 does not require any external calibration or trimming, simplifying its use in embedded systems and temperature monitoring solutions.

Key Features:

• Type: Analog temperature sensor
• Accuracy: ±0.5°C at room temperature
• Range: -55°C to +150°C
• Linear Output: 10mV/°C
• Low Self-Heating: Less than 0.1°C in still air
• Wide Operating Voltage: 4V to 30V
• Low Impedance Output: Can drive up to 1mA load
• Calibration: Factory calibrated in Celsius

Technical Specifications:

• Output Voltage: 10mV per °C
• Operating Voltage: 4V to 30V
• Temperature Range: -55°C to +150°C
• Accuracy: ±0.5°C at 25°C
• Self-Heating: 0.08°C in still air
• Response Time: 1.5 seconds (typical)
• Output Impedance: Low impedance output (less than 1 ohm)
• Package Type: TO-92, SO-8, TO-220

Applications:

• Temperature Measurement: Suitable for HVAC systems, environmental monitoring, and home appliances.
• Thermal Protection: Can be used for thermal shutdown and temperature control in electronic devices.
• Industrial Equipment: Monitoring temperature in industrial machinery and processes.
• Consumer Electronics: Used in gadgets, computers, and other electronic products for temperature sensing.
• Automotive: Temperature monitoring in automotive systems and engines.

Usage:

1. Circuit Integration: Connect the LM35 sensor to a microcontroller or analog-to-digital converter (ADC) to read temperature data.
2. Power Supply: Provide a stable voltage within the operating range (4V to 30V).
3. Temperature Reading: Measure the output voltage, which corresponds to the temperature (e.g., 250mV equals 25°C).

Caution:

• Proper Wiring: Ensure correct wiring to avoid damage to the sensor.
• Environment: Protect the sensor from extreme conditions beyond its specified range.