Overview
The LM35DZ/LFT4, produced by Texas Instruments, is a precision integrated-circuit temperature sensor. It provides an accurate analog output voltage that is linearly proportional to the Centigrade temperature. This device is calibrated directly in Celsius, eliminating the need for external calibration or trimming. The LM35DZ/LFT4 is known for its high accuracy, low self-heating, and low current drain, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Value |
|---|---|
| Temperature Measuring Range | −55°C to 150°C |
| Accuracy at 25°C | ±0.5°C |
| Scale Factor | 10 mV/°C |
| Operating Voltage | 4 V to 30 V |
| Current Drain | |
| Self-Heating | |
| Non-Linearity | |
| Output Impedance | |
| Package Type |
Key Features
- Calibrated directly in Celsius, eliminating the need for external calibration or trimming.
- Linear output voltage proportional to Centigrade temperature with a scale factor of 10 mV/°C.
- High accuracy with ±0.5°C ensured accuracy at 25°C and ±¾°C over the full temperature range.
- Low self-heating of less than 0.1°C in still air.
- Low current drain of less than 60 µA.
- Low-output impedance of 0.1 Ω for a 1-mA load.
- Operates from a single power supply or with plus and minus supplies.
Applications
- Power Supplies
- Battery Management
- HVAC (Heating, Ventilation, and Air Conditioning)
- Appliances
- Remote temperature sensing applications.
Q & A
- What is the temperature range of the LM35DZ/LFT4?
The LM35DZ/LFT4 operates over a temperature range of −55°C to 150°C. - What is the accuracy of the LM35DZ/LFT4 at 25°C?
The accuracy at 25°C is ±0.5°C. - What is the scale factor of the LM35DZ/LFT4?
The scale factor is 10 mV/°C. - What is the operating voltage range of the LM35DZ/LFT4?
The device operates from 4 V to 30 V. - How much current does the LM35DZ/LFT4 draw?
The current drain is less than 60 µA. - What is the self-heating of the LM35DZ/LFT4?
The self-heating is less than 0.1°C in still air. - What is the output impedance of the LM35DZ/LFT4?
The output impedance is 0.1 Ω for a 1-mA load. - In what package types is the LM35DZ/LFT4 available?
The device is available in a TO-92 package. - What are some common applications of the LM35DZ/LFT4?
Common applications include power supplies, battery management, HVAC, appliances, and remote temperature sensing. - Does the LM35DZ/LFT4 require external calibration?
No, the LM35DZ/LFT4 does not require external calibration or trimming.
