Overview
The LM35DM/NOPB is a precision integrated-circuit temperature sensor produced by Texas Instruments. It is designed to provide an accurate temperature reading in Celsius without requiring any external calibration or trimming. This component is widely used in various applications due to its linear output, low self-heating, and ease of interfacing with control circuits.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Temperature Range | -55 to 150 | °C | |
| Accuracy | ±0.25 | °C | At room temperature |
| Output Voltage | 10 mV/°C | mV/°C | Linear scale factor |
| Supply Voltage | 4 to 30 | V | |
| Current Drain | 60 | μA | |
| Self-Heating | <0.1 | °C | In still air |
| Package | SOIC-8 |
Key Features
- Calibrated directly in Celsius (Centigrade)
- Linear + 10-mV/°C scale factor
- 0.5°C accuracy guaranteeable (at +25°C)
- Rated for full −55°C to +150°C range
- Suitable for remote applications
- Low cost due to wafer-level trimming
- Operates from 4 to 30 volts
- Less than 60-μA current drain
- Low self-heating, 0.08°C in still air
- Nonlinearity only ±¼°C typical
- Low impedance output, 0.1 Ω for 1 mA load
Applications
The LM35DM/NOPB is suitable for a wide range of applications, including environmental controls, process control, automotive, and consumer electronics. Its precise temperature measurement capabilities make it ideal for systems requiring accurate thermal management. Additionally, its low self-heating and linear output simplify integration into various electronic designs, enhancing performance and reliability.
Q & A
What is the operating temperature range of the LM35DM/NOPB?
The LM35DM/NOPB operates effectively from -55°C to +150°C.
Does the LM35DM/NOPB require external calibration?
No, the LM35DM/NOPB does not require any external calibration or trimming to provide accurate readings.
What is the output scale factor of the LM35DM/NOPB?
The output scale factor is 10 mV per degree Celsius.
Can the LM35DM/NOPB be used in automotive applications?
Yes, it is suitable for automotive applications due to its robust performance and reliability across a wide temperature range.
What is the current drain of the LM35DM/NOPB?
The current drain is less than 60 μA.
How accurate is the LM35DM/NOPB at room temperature?
At room temperature, the accuracy is ±0.25°C.
What package does the LM35DM/NOPB come in?
It comes in an SOIC-8 package.
Is the LM35DM/NOPB suitable for remote temperature sensing?
Yes, its low output impedance and linear output make it suitable for remote applications.
What is the self-heating effect of the LM35DM/NOPB?
In still air, the self-heating is less than 0.1°C.
Can the LM35DM/NOPB operate with a single power supply?
Yes, it can operate with a single power supply ranging from 4 to 30 volts.
