Intel® Arria® 10 Core Fabric and General Purpose I/Os Handbook

ID 683461
Date 10/25/2023
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10.5.3.1. Comparing Temperature Readouts of Intel® Arria® 10 External TSD and Intel® Arria® 10 Internal Temperature Sensor

When comparing between the temperature readouts of the Intel® Arria® 10 external temperature sensing diode (TSD) and the Intel® Arria® 10 internal temperature sensor, consider the temperature error contributed by your external TSD implementation at board level such as accuracy of the temperature sensing chip, ideality factor mismatch, and series resistance. For example, the Intel® Arria® 10 internal temperature sensor has an accuracy of +/-5°C and total errors from external TSD implementation is +/-4°C. The worst case temperature variation could go up to +/- 9deg °C with sum of both errors.