規格
| 屬性 | 價值 |
| Package | Tube |
| ProductStatus | Not For New Designs |
| SensorType | Analog, Local |
| SensingTemperature-Local | 0°C ~ 100°C |
| OutputType | Analog Voltage |
| Voltage-Supply | 4V ~ 30V |
| Resolution | 10mV/°C |
| Accuracy-Highest(Lowest) | ±1.5°C |
| TestCondition | 25°C |
| OperatingTemperature | 0°C ~ 100°C |
| MountingType | Through Hole |
| Package/Case | TO-220-3 |
概述
Description
The LM35DT is a precision integrated-circuit temperature sensor, part of the LM35 series, which outputs a voltage linearly proportional to the Celsius temperature. This sensor offers a functional range from -55°C to 150°C. Unlike other temperature sensors calibrated in Kelvin, the LM35 is calibrated in Celsius, simplifying its integration into temperature measurement and control systems. It operates with a linear scale factor of 10 mV/°C, providing a straightforward way to convert the output voltage to temperature.
The LM35DT is housed in a TO-220 package, designed for easy mounting and heat dissipation. It requires no external calibration to maintain an accuracy of ±0.5°C at room temperature and ±1°C over a broader temperature range. The device draws just 60 μA from its supply, ensuring minimal self-heating and maintaining accurate temperature sensing. Its low output impedance, linear output, and precise inherent calibration make it suitable for remote applications. Overall, the LM35DT is a versatile and reliable choice for various temperature sensing applications in industrial, commercial, and consumer products.
The LM35DT is housed in a TO-220 package, designed for easy mounting and heat dissipation. It requires no external calibration to maintain an accuracy of ±0.5°C at room temperature and ±1°C over a broader temperature range. The device draws just 60 μA from its supply, ensuring minimal self-heating and maintaining accurate temperature sensing. Its low output impedance, linear output, and precise inherent calibration make it suitable for remote applications. Overall, the LM35DT is a versatile and reliable choice for various temperature sensing applications in industrial, commercial, and consumer products.
Equivalent
The LM35DT is a precision temperature sensor. Equivalent products include:
1. LM35 series (e.g., LM35DZ, LM35CAZ) - Other variants with similar functions but different packaging or temperature ranges.
2. DS18B20 - A digital temperature sensor with similar precision.
3. TMP36 - An analog temperature sensor with a similar operating range.
4. AD590 - An integrated circuit temperature transducer.
5. MCP9700 - A low-power linear active thermistor.
Ensure compatibility in terms of operating voltage, temperature range, and packaging when selecting a replacement.
1. LM35 series (e.g., LM35DZ, LM35CAZ) - Other variants with similar functions but different packaging or temperature ranges.
2. DS18B20 - A digital temperature sensor with similar precision.
3. TMP36 - An analog temperature sensor with a similar operating range.
4. AD590 - An integrated circuit temperature transducer.
5. MCP9700 - A low-power linear active thermistor.
Ensure compatibility in terms of operating voltage, temperature range, and packaging when selecting a replacement.
Features
The LM35DT is a precision temperature sensor with an analog voltage output proportional to the temperature in Celsius. Key features include:
1. Accuracy: It offers a high-level of precision, typically around ±0.5°C at room temperature.
2. Linear Output: The sensor provides a linear output of 10 mV per degree Celsius, making it easy to interpret the data.
3. Wide Temperature Range: It operates effectively within a range of -55°C to 150°C.
4. Low Self-Heating: The device has low self-heating, resulting in minimal temperature increase during operation.
5. Low Voltage Operation: It requires a supply voltage between 4V and 30V, making it versatile for various applications.
6. Low Power Consumption: The LM35DT consumes a low quiescent current, making it energy-efficient.
7. TO-220 Package: It is commonly available in a TO-220 package, which provides ease of mounting and handling.
8. No External Calibration: The sensor does not require any additional calibration or trimming.
These features make the LM35DT suitable for various applications, including industrial, environmental monitoring, and consumer electronics.
1. Accuracy: It offers a high-level of precision, typically around ±0.5°C at room temperature.
2. Linear Output: The sensor provides a linear output of 10 mV per degree Celsius, making it easy to interpret the data.
3. Wide Temperature Range: It operates effectively within a range of -55°C to 150°C.
4. Low Self-Heating: The device has low self-heating, resulting in minimal temperature increase during operation.
5. Low Voltage Operation: It requires a supply voltage between 4V and 30V, making it versatile for various applications.
6. Low Power Consumption: The LM35DT consumes a low quiescent current, making it energy-efficient.
7. TO-220 Package: It is commonly available in a TO-220 package, which provides ease of mounting and handling.
8. No External Calibration: The sensor does not require any additional calibration or trimming.
These features make the LM35DT suitable for various applications, including industrial, environmental monitoring, and consumer electronics.
Pinout
The LM35DT is a precision integrated-circuit temperature sensor with an output voltage linearly proportional to the Centigrade temperature. It is part of the LM35 series and is designed to provide a reliable and accurate measurement of temperature.
The LM35DT typically comes in a package with three pins:
1. Vout (Pin 1): This is the output pin, where the sensor provides an analog voltage that is linearly proportional to the temperature in degrees Celsius. The output is typically 10mV per °C, meaning if the temperature is 25°C, the output voltage will be 250mV.
2. GND (Pin 2): This pin is connected to the ground of the circuit. It serves as a reference point for the sensor's operation and the output voltage.
3. Vs (Pin 3): This is the supply voltage pin. The LM35DT typically operates with a supply voltage ranging from 4V to 30V.
The LM35 series is known for its low self-heating and precise temperature measurement, making it suitable for various applications like HVAC systems, automotive, and consumer electronics.
The LM35DT typically comes in a package with three pins:
1. Vout (Pin 1): This is the output pin, where the sensor provides an analog voltage that is linearly proportional to the temperature in degrees Celsius. The output is typically 10mV per °C, meaning if the temperature is 25°C, the output voltage will be 250mV.
2. GND (Pin 2): This pin is connected to the ground of the circuit. It serves as a reference point for the sensor's operation and the output voltage.
3. Vs (Pin 3): This is the supply voltage pin. The LM35DT typically operates with a supply voltage ranging from 4V to 30V.
The LM35 series is known for its low self-heating and precise temperature measurement, making it suitable for various applications like HVAC systems, automotive, and consumer electronics.
Manufacturer
The LM35DT is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company known for designing and manufacturing semiconductors and various integrated circuits, which are used in electronics across the globe. TI is one of the largest semiconductor companies in the world and is renowned for its innovation in analog and embedded processing products. The company serves a wide range of industries, including automotive, industrial, personal electronics, communications, and enterprise systems. TI is particularly noted for its focus on research and development, enabling it to produce advanced technologies that drive electronic advancements.
Application
The LM35DT, a precision temperature sensor, is widely used in various applications due to its accuracy and linear output. Common application areas include:
1. HVAC Systems: Used for monitoring and controlling heating, ventilation, and air conditioning systems.
2. Consumer Electronics: Integrated into devices for temperature regulation and safety.
3. Automotive: Employed in engine and cabin temperature monitoring.
4. Industrial Automation: Used in process control environments for temperature tracking.
5. Medical Devices: Incorporated into biomedical instruments for patient monitoring.
6. Environmental Monitoring: Utilized in weather stations and agricultural applications for climate data collection.
Its simplicity, requiring no external calibration, makes it ideal for embedded systems and microcontroller projects.
1. HVAC Systems: Used for monitoring and controlling heating, ventilation, and air conditioning systems.
2. Consumer Electronics: Integrated into devices for temperature regulation and safety.
3. Automotive: Employed in engine and cabin temperature monitoring.
4. Industrial Automation: Used in process control environments for temperature tracking.
5. Medical Devices: Incorporated into biomedical instruments for patient monitoring.
6. Environmental Monitoring: Utilized in weather stations and agricultural applications for climate data collection.
Its simplicity, requiring no external calibration, makes it ideal for embedded systems and microcontroller projects.
Package
The LM35DT is a temperature sensor packaged in the TO-220 form factor. This package provides easy handling and mounting, featuring three pins for connectivity. It is designed for accurate temperature measurement with a high degree of reliability.
