NFC sensor logs temperature data
The part’s temperature sensor has a programmable temperature range with a default setting of −20°C to +55°C. Temperature sensor accuracy is to within ±0.5°C from −20°C to +10°C and ±1°C from −20°C to +55°C. In addition, the AS39513 can accept an analog input from an external sensor.
Powered by a 1.5 V single-cell or 3 V dual-cell battery, the AS39513 stores up to 1020 time-stamped sensor measurements. It reads over a range of a few centimeters with an NFC mobile phone, while an extended read range of 1 m to 2 m can be achieved when using dedicated ISO15693 readers. Drawing just 2 µA of standby current, the sensor autonomously logs temperature data for more than a year on a 30 mAh single-cell battery.
Offered as gold bumped die or in a chip-scale package, the AS39513 costs $1.19 each in lots of 5000 units.
AS39513 product page
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