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The LM35DZ/NOPB is a precision temperature sensor from Texas Instruments. It measures temperature in degrees Celsius and provides an output voltage proportional to the temperature, making it highly suitable for applications requiring accurate temperature monitoring. The LM35 operates from a single supply and is capable of operating in a wide temperature range. Functions - Temperature Measurement: Converts temperature to a linear output voltage. - Linear Voltage Output: Each degree Celsius corresponds to a 10 mV output (e.g., 25°C = 250 mV). - Calibration-Free: No external calibration required; accurate temperature reading with minimal error. - Wide Supply Range: Operating voltage typically ranges from 4 to 30 V. Applications - Industrial Temperature Sensors: Used in control systems and HVAC equipment. - Consumer Electronics: Temperature measurement in refrigerators and ovens. - Environmental Monitoring: Used in weather stations and laboratories. - Thermostats: Embedded in various home appliances for temperature regulation. - Medical Devices: Monitoring body temperature in diagnostic equipment. Alternative Parts - LM35: Similar sensor, without the improved specifications of the LM35DZ. - LM34: Measures temperature in Fahrenheit. - LMT70: Digital temperature sensor providing I2C digital output. - TMP36: Another analog temperature sensor that operates similarly with a slightly different output voltage. Embedded Modules - Temperature Sensor Modules: Numerous breakout boards based on LM35 are available, providing easy integration with microcontrollers. - Microcontroller Development Kits: Numerous kits with built-in LM35 or similar temperature sensors for rapid prototyping. - Arduino-Compatible Modules: Sensor modules specifically designed for Arduino interfacing. Q&A Section Q1: What is the output voltage of the LM35DZ/NOPB at 25°C? A1: The output voltage of the LM35DZ/NOPB at 25°C is 250 mV, as it outputs 10 mV per degree Celsius. Q2: Can the LM35DZ/NOPB be used for low-voltage applications? A2: Yes, the LM35 can operate at a supply voltage as low as 4 V, making it suitable for low-voltage applications. Q3: How accurate is the LM35DZ/NOPB? A3: The LM35DZ/NOPB typically provides an accuracy of ±0.5°C at room temperature (25°C), with a slight variation over its operational range. Q4: Is the LM35DZ/NOPB suited for digital applications? A4: The LM35DZ/NOPB provides an analog output, so it’s primarily used in analog applications unless paired with an ADC (analog-to-digital converter) for digital interfacing. Q5: What are some benefits of using the LM35DZ/NOPB compared to other temperature sensors? A5: Benefits include its linear output, no need for external calibration, wide operating voltage range, and high accuracy, making it versatile for many temperature sensing applications.