Specifications
| Attribute | Value |
| 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 | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Overview
Description
The LM35DM is a precision integrated-circuit temperature sensor, part of the LM35 series, which provides an output voltage linearly proportional to the Celsius temperature. It operates without the need for external calibration or trimming, making it user-friendly and efficient. The LM35DM is known for its accuracy of ±0.5°C at room temperature and can measure a range from -55°C to +150°C.
This sensor is housed in a TO-220 package, which is suitable for easy mounting and handling. It operates on a power supply range from 4V to 30V, making it compatible with a variety of electronic systems. The output voltage is 10mV per degree Celsius, allowing straightforward conversion of voltage readings to temperature values.
The LM35DM is valued for its low self-heating, which is less than 0.1°C in still air, ensuring that measurements are stable and reliable. It is commonly used in applications like environmental monitoring, consumer electronics, and industrial temperature control systems due to its robustness and ease of interface with microcontrollers and other digital systems.
This sensor is housed in a TO-220 package, which is suitable for easy mounting and handling. It operates on a power supply range from 4V to 30V, making it compatible with a variety of electronic systems. The output voltage is 10mV per degree Celsius, allowing straightforward conversion of voltage readings to temperature values.
The LM35DM is valued for its low self-heating, which is less than 0.1°C in still air, ensuring that measurements are stable and reliable. It is commonly used in applications like environmental monitoring, consumer electronics, and industrial temperature control systems due to its robustness and ease of interface with microcontrollers and other digital systems.
Equivalent
Equivalent products to the LM35DM temperature sensor include:
1. TMP36 by Analog Devices: A low-voltage, precision centigrade temperature sensor.
2. MCP9700 by Microchip Technology: A low-cost, low-power, linear active thermistor IC.
3. LM34 series by Texas Instruments: Provides an analog voltage output proportional to temperature in Fahrenheit.
4. DS18B20 by Maxim Integrated: A digital thermometer with a 1-wire interface.
5. AD22103 by Analog Devices: A low-cost, monolithic temperature sensor with a voltage output.
These alternatives offer similar functionality for temperature measurement applications.
1. TMP36 by Analog Devices: A low-voltage, precision centigrade temperature sensor.
2. MCP9700 by Microchip Technology: A low-cost, low-power, linear active thermistor IC.
3. LM34 series by Texas Instruments: Provides an analog voltage output proportional to temperature in Fahrenheit.
4. DS18B20 by Maxim Integrated: A digital thermometer with a 1-wire interface.
5. AD22103 by Analog Devices: A low-cost, monolithic temperature sensor with a voltage output.
These alternatives offer similar functionality for temperature measurement applications.
Features
The LM35DM is a precision temperature sensor with an analog voltage output, specifically designed for ease of use and high accuracy. Key features include:
1. High Accuracy: It provides accurate temperature readings with a typical accuracy of ±0.5°C at room temperature.
2. Wide Temperature Range: The sensor can measure temperatures from -55°C to +150°C, making it suitable for various applications.
3. Linear Output: The output voltage is linearly proportional to the Celsius temperature, with a scale factor of 10 mV/°C, simplifying the conversion to temperature readings.
4. Low Self-Heating: It has low self-heating, less than 0.1°C in still air, minimizing measurement errors due to the sensor's temperature rise.
5. Low Power Consumption: Operating with minimal power, the LM35DM is ideal for battery-powered applications.
6. Direct Readout: Being calibrated directly in Celsius, it eliminates the need for complex calculations or additional components.
7. Compatibility: Operates from 4V to 30V supply voltage, making it versatile for use across different systems.
These features make the LM35DM suitable for a wide range of temperature monitoring and control applications.
1. High Accuracy: It provides accurate temperature readings with a typical accuracy of ±0.5°C at room temperature.
2. Wide Temperature Range: The sensor can measure temperatures from -55°C to +150°C, making it suitable for various applications.
3. Linear Output: The output voltage is linearly proportional to the Celsius temperature, with a scale factor of 10 mV/°C, simplifying the conversion to temperature readings.
4. Low Self-Heating: It has low self-heating, less than 0.1°C in still air, minimizing measurement errors due to the sensor's temperature rise.
5. Low Power Consumption: Operating with minimal power, the LM35DM is ideal for battery-powered applications.
6. Direct Readout: Being calibrated directly in Celsius, it eliminates the need for complex calculations or additional components.
7. Compatibility: Operates from 4V to 30V supply voltage, making it versatile for use across different systems.
These features make the LM35DM suitable for a wide range of temperature monitoring and control applications.
Pinout
The LM35DM is a precision temperature sensor in a surface-mount SOIC-8 package. It has a total of 8 pins, but typically only three of them are used for its primary function:
1. Vout (Pin 2): This is the output pin and provides a voltage that is linearly proportional to the Celsius temperature. The output is typically 10 mV per degree Celsius.
2. Vs (Pin 3): This is the power supply pin. The LM35DM operates with a supply voltage ranging from 4V to 30V.
3. GND (Pin 1): This is the ground pin and should be connected to the system ground.
The remaining pins are usually not connected in typical applications. The LM35DM measures temperature with a high degree of precision and does not require any external calibration. It's used in a wide range of applications due to its linear output, low power consumption, and ease of use.
1. Vout (Pin 2): This is the output pin and provides a voltage that is linearly proportional to the Celsius temperature. The output is typically 10 mV per degree Celsius.
2. Vs (Pin 3): This is the power supply pin. The LM35DM operates with a supply voltage ranging from 4V to 30V.
3. GND (Pin 1): This is the ground pin and should be connected to the system ground.
The remaining pins are usually not connected in typical applications. The LM35DM measures temperature with a high degree of precision and does not require any external calibration. It's used in a wide range of applications due to its linear output, low power consumption, and ease of use.
Manufacturer
The LM35DM is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company renowned for its design and production of semiconductors and integrated circuits. TI primarily focuses on the development of analog chips and embedded processors, which are used in a wide range of electronic devices. The company has a strong presence in the electronics industry due to its innovative solutions and products tailored for various applications, including consumer electronics, automotive, industrial, and communications technologies. TI's expertise in analog technology and embedded processing makes it a key player in providing solutions that enhance power efficiency, performance, and reliability across numerous sectors.
Application
The LM35DM is a precision temperature sensor used in various applications due to its linear output voltage and ease of use. Common areas include:
1. Environmental Monitoring: Used in weather stations and HVAC systems for accurate temperature readings.
2. Consumer Electronics: Integrated into devices like thermostats and smart home systems.
3. Healthcare: Utilized in medical devices for monitoring patient temperatures.
4. Industrial Automation: Employed in machinery and process control to ensure optimal operating temperatures.
5. Automotive: Used in climate control systems and engine monitoring.
Its ease of integration and reliable performance make it suitable for both simple and complex temperature measurement tasks.
1. Environmental Monitoring: Used in weather stations and HVAC systems for accurate temperature readings.
2. Consumer Electronics: Integrated into devices like thermostats and smart home systems.
3. Healthcare: Utilized in medical devices for monitoring patient temperatures.
4. Industrial Automation: Employed in machinery and process control to ensure optimal operating temperatures.
5. Automotive: Used in climate control systems and engine monitoring.
Its ease of integration and reliable performance make it suitable for both simple and complex temperature measurement tasks.
Package
The LM35DM is a temperature sensor in a surface-mount SOIC (Small Outline Integrated Circuit) package. It's designed for easy integration onto PCBs and measures temperature with high accuracy, providing a voltage output proportional to the temperature in Celsius.
