LM35DM/NOPB

The LM35DM/NOPB is a precision temperature sensor manufactured by Texas Instruments. It is designed to provide an accurate and linear output voltage that is directly proportional to the temperature in degrees Celsius. This device is particularly useful in a variety of applications, including industrial temperature monitoring, HVAC systems, and consumer electronics.

Key Features:

1. Temperature Range: The LM35 can measure temperatures from -55°C to +150°C, making it suitable for a wide range of environments.

2. Output Voltage: The output voltage of the LM35 is 10 mV per degree Celsius. For example, at 25°C, the output voltage would be 250 mV. This linear relationship simplifies the interfacing with analog-to-digital converters (ADCs) and microcontrollers.

3. Accuracy: The LM35 offers a high degree of accuracy, with a typical error of ±0.5°C at room temperature. This precision is crucial for applications requiring reliable temperature readings.

4. Low Power Consumption: The device operates on a low supply voltage, typically between 4V and 30V, and consumes minimal current, making it energy-efficient.

5. Package Type: The LM35DM/NOPB is available in a surface-mount package (SOT-23), which is compact and suitable for modern electronic designs where space is a premium.

6. Temperature Coefficient: The temperature coefficient is typically 20 µV/°C, which contributes to its linear output and makes it easy to calibrate.

7. No External Calibration Required: The LM35 is factory-calibrated, which means it does not require any external calibration, simplifying the design process for engineers.

8. Applications: Common applications include temperature sensing in automotive systems, environmental monitoring, and as a temperature input for microcontroller-based systems.

Electrical Characteristics:

• Supply Voltage (V+): 4V to 30V
• Output Impedance: Low output impedance allows for easy interfacing with other components.
• Operating Current: Typically low, ensuring minimal impact on battery-operated devices.

Thermal Characteristics:

• Response Time: The LM35 has a fast response time, allowing it to quickly adapt to changes in temperature, which is essential for dynamic environments.

Conclusion:

The LM35DM/NOPB from Texas Instruments is a versatile and reliable temperature sensor that provides accurate and linear temperature readings. Its ease of use, low power consumption, and compact size make it an excellent choice for a wide range of temperature measurement applications in both consumer and industrial settings.