A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the analog and digital grounds separate and connect them at a single point. Use a 10uF capacitor between VCC and GND, and a 0.1uF capacitor between VCC and AVCC.
Use a thermocouple or a thermistor with a high accuracy rating. Ensure good thermal contact between the sensor and the device being measured. Use a low-pass filter to remove noise and averaging to improve accuracy.
The maximum cable length for the 1-Wire interface is 100 meters. However, the actual length may vary depending on the cable quality, noise environment, and data rate.
Yes, the DS2762BE+025/T&R supports multi-drop configuration. Each device on the 1-Wire bus must have a unique address, and the master device must be able to handle the increased bus capacitance.
Implement a retry mechanism to handle errors due to noise or collisions on the 1-Wire bus. Use a timeout mechanism to detect and recover from errors. Implement a CRC check to ensure data integrity.
DS2762BE+025/T&R datasheet
by Maxim Integrated Products
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