Overview
The LM35DZ/LFT1, produced by Texas Instruments, is a precision integrated-circuit temperature sensor. This device is calibrated directly in Celsius (Centigrade) and features a linear output voltage that is proportional to the temperature, with a scale factor of 10 mV/°C. The LM35DZ/LFT1 is known for its high accuracy, low self-heating, and ease of use in various applications. It operates over a wide temperature range and is suitable for remote temperature sensing due to its low power consumption and robust design.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Temperature Range | 0°C to 100°C | °C |
| Accuracy at 25°C | ±0.5°C | °C |
| Scale Factor | 10 mV/°C | mV/°C |
| Supply Voltage Range | 4 V to 30 V | V |
| Supply Current | < 60 µA | µA |
| Self-Heating | < 0.1°C in still air | °C |
| Output Impedance | 0.1 Ω for 1-mA load | Ω |
| Package Type | TO-92 | |
| Number of Pins | 3 | |
| Dimensions | Height: 5.2 mm, Length: 5.2 mm, Width: 4.19 mm | mm |
Key Features
- Calibrated directly in Celsius (Centigrade) with a linear +10-mV/°C scale factor.
- High accuracy with ±0.5°C ensured accuracy at 25°C and ±¾°C over the full temperature range.
- Operates from 4 V to 30 V with low current drain of less than 60 µA.
- Low self-heating of less than 0.1°C in still air.
- Low-output impedance of 0.1 Ω for a 1-mA load.
- No external calibration or trimming required.
- Suitable for remote applications due to its robust design and low power consumption.
Applications
- Power Supplies: For temperature monitoring and control in power supply systems.
- Battery Management: To monitor battery temperature in various battery management systems.
- HVAC (Heating, Ventilation, and Air Conditioning): For temperature sensing in HVAC systems.
- Appliances: Used in various household and industrial appliances for temperature monitoring.
Q & A
- What is the temperature range of the LM35DZ/LFT1?
The LM35DZ/LFT1 operates over a temperature range of 0°C to 100°C.
- What is the accuracy of the LM35DZ/LFT1 at 25°C?
The accuracy at 25°C is ±0.5°C.
- What is the scale factor of the LM35DZ/LFT1?
The scale factor is 10 mV/°C.
- What is the supply voltage range for the LM35DZ/LFT1?
The supply voltage range is from 4 V to 30 V.
- How much current does the LM35DZ/LFT1 draw from the supply?
The device draws less than 60 µA from the supply.
- What is the self-heating of the LM35DZ/LFT1 in still air?
The self-heating is less than 0.1°C in still air.
- What is the output impedance of the LM35DZ/LFT1?
The output impedance is 0.1 Ω for a 1-mA load.
- Does the LM35DZ/LFT1 require external calibration or trimming?
No, it does not require any external calibration or trimming.
- What are some common applications of the LM35DZ/LFT1?
Common applications include power supplies, battery management, HVAC systems, and various household and industrial appliances.
- What package type is the LM35DZ/LFT1 available in?
The LM35DZ/LFT1 is available in a TO-92 package.
