DS18B20Z+T&R datasheet by Maxim Integrated Products

DS18B20Z+T&R Frequently Asked Questions (FAQs)

• What is the accuracy of the DS18B20Z+T&R temperature sensor?
  The DS18B20Z+T&R 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+T&R sensors to a single bus?
  You can connect multiple DS18B20Z+T&R sensors to a single bus by connecting the DQ pins of each sensor to the same bus line, and ensuring each sensor has a unique ROM code.
• What is the maximum cable length for the DS18B20Z+T&R sensor?
  The maximum cable length for the DS18B20Z+T&R sensor is 100 meters, but this can be extended using repeaters or other signal conditioning techniques.
• How do I convert the temperature reading from the DS18B20Z+T&R to Celsius or Fahrenheit?
  The DS18B20Z+T&R returns a 12-bit temperature reading in 0.0625°C increments. To convert to Celsius, simply multiply the reading by 0.0625. To convert to Fahrenheit, multiply the Celsius reading by 1.8 and add 32.
• What is the power consumption of the DS18B20Z+T&R sensor?
  The DS18B20Z+T&R sensor has a typical active supply current of 1.5mA, and a standby current of 1µA.