DS18B20Z-W datasheet by Maxim Integrated Products

DS18B20Z-W Frequently Asked Questions (FAQs)

• What is the accuracy of the DS18B20Z-W at different temperatures?
  The DS18B20Z-W has an accuracy of ±0.5°C from -10°C to +85°C, and ±1°C from -40°C to +125°C.
• How do I connect multiple DS18B20Z-W sensors to a single bus?
  You can connect multiple DS18B20Z-W sensors to a single bus by connecting the VDD, GND, and DQ pins of each sensor in parallel. Each sensor has a unique 64-bit serial code, allowing the master device to address and read data from each sensor individually.
• What is the maximum cable length for the DS18B20Z-W?
  The maximum cable length for the DS18B20Z-W is 100 meters, but this can be extended up to 300 meters using repeaters or active bus extenders.
• How do I power the DS18B20Z-W?
  The DS18B20Z-W can be powered from a 3.0V to 5.5V supply, and it has a low power consumption of 1.5mA active and 0.5µA standby.
• Is the DS18B20Z-W suitable for outdoor use?
  The DS18B20Z-W is rated for operation from -40°C to +125°C, making it suitable for outdoor use in most environments. However, it's recommended to use a waterproof package or enclosure to protect the sensor from moisture and other environmental factors.