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Description: 1. DS18B20 is a popular one-wire digital temperature sensor module based on Maxim Integrated's microcontroller IC. 2. It features high precision temperature measurement with an accuracy of ±0.5°C for temperatures between -32°C and +85°C, making it suitable for various applications. 3. The DS18B20 operates on a single-wire bus system called the One-Wire Interface ( Davis Two-Wire), which allows communication between multiple sensors over a single data line and power supply. 4. Each sensor has its unique 64-bit ID, making it easy to distinguish and connect individually in a system without any address conflicts. 5. DS18B20 can be powered through the data line (Parasitic Power) or an external power source of 3.3V to 5.5V. In parasitic power mode, the sensor draws minimal current when dormant and only requires around 6 mW during readings. 6. Its temperature measurement range extends from -55°C to +125°C using the appropriate external resistor or a temperature compensated version like
| Specification | Details |
|---|---|
| Part Number | DS18B20 |
| Manufacturer | Maxim Integrated |
| Interface | 1-Wire (serial) |
| Operating Voltage | 3.0V to 5.5V |
| Accuracy | ±0.5°C over -55°C to +85°C |
| Resolution | 9-bit 10 bits with external resistor |
| Sampling Rate | 15 Hz |
| Supply Current | ≤ 400 μA |
| Temperature Range | -55°C to +125°C |
| Storage Temperature | -40°C to +150°C |
| Packaging | TO-92 package |
| Weight | ≈ 0.3 grams |
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