The LM35DZ is a precision integrated-circuit temperature sensor, developed by Texas Instruments, that can measure temperature with a linear degree Celsius scaling. This high-precision temperature sensor provides an output voltage that is directly proportional to the ambient temperature. It is widely recognized for its ease of use, low cost, and minimal need for external calibration or trimming.
Key Features
- Calibrated Directly in Celsius: The LM35DZ provides a linear output that equates to +10mV/°C scale factor without requiring any external calibration.
- Wide Range: This sensor can measure temperatures ranging from -55°C to +150°C, making it suitable for a wide array of applications.
- Low Operating Voltage: It operates from 4V to 30V, allowing flexibility in the choice of power supply and ensuring low battery drain.
- Low Self-Heating: The LM35DZ exhibits a very low self-heating effect, typically less than 0.1°C in still air, which enhances its accuracy and reliability.
- Non-linearity: Exhibits a non-linearity only ±¼°C at room temperature, which is excellent for most applications without calibration.
Applications
The LM35DZ is particularly well-suited for environmental controls, HVAC systems, temperature monitoring systems inside buildings, equipment or machinery, and process control and instrumentation. Its simplicity and accuracy make it an ideal choice for hobbyists and professionals alike for temperature monitoring projects.
Product Specifications
Parameter
Value
Temperature Range
-55°C to +150°C
Accuracy
±0.5°C at +25°C
Scale Factor
+10mV/°C
Operating Voltage
4V to 30V
Output Type
Analog Voltage
Package
TO-92
For those looking to integrate temperature sensing into their systems with minimal hassle, the LM35DZ from Texas Instruments stands out as a reliable and cost-effective solution.