Jump to content

DS18B20 1-WIRE TEMPERATURE SENSOR

From Transight Wiki
Revision as of 05:07, 24 June 2025 by Editor (talk | contribs)

Introduction to the product

The DS18B20 is a digital temperature sensor created by Dallas Semiconductor (now part of Maxim Integrated). It uses a special 1-Wire® communication protocol. This protocol allows data transfer using just a single data line, which significantly reduces the number of required connections!

You can find this sensor in two main types:

  • A TO-92 package that looks like a small transistor
  • A waterproof probe that’s perfect for measuring temperatures in wet environments, underground, or places that are hard to reach
Parameters Value
Power Supply 3V to 5.5V
Current Consumption 1mA
Temperature Range (-55 to 125°C)
Accuracy ±0.5°C
Resolution 9 to 12 bit (selectable)
Conversion Time < 750ms
Wiring Red-Power

Black-GND

Yellow or White-Data