DS1821S datasheet by Maxim Integrated Products

DS1821S Frequently Asked Questions (FAQs)

• What is the accuracy of the DS1821S over the entire operating temperature range?
  The DS1821S has an accuracy of ±2°C over the entire operating temperature range of -55°C to +125°C.
• How do I connect multiple DS1821S devices to a single bus?
  You can connect multiple DS1821S devices to a single bus by assigning a unique 64-bit ROM code to each device and using a 1-Wire master device to communicate with each device individually.
• What is the maximum cable length for the 1-Wire bus?
  The maximum cable length for the 1-Wire bus is approximately 100 meters, but this can be extended using repeaters or other signal conditioning techniques.
• How do I handle errors and retries in the 1-Wire communication protocol?
  The 1-Wire protocol includes built-in error detection and correction mechanisms, such as CRC checks and retry mechanisms, to ensure reliable communication.
• Can I use the DS1821S in a multi-drop configuration?
  Yes, the DS1821S can be used in a multi-drop configuration, where multiple devices are connected to a single bus, but each device must have a unique ROM code and be addressed individually.