Digital temperature sensor for healthcare devices & wearables requiring high accuracy

The AS6221 is a highly accurate digital temperature sensor with an accuracy of 0.09°C, which is ideal for healthcare applications, wearables and devices requiring high performance thermal information.

The AS6221 is a complete digital sensor system, requires no calibration or linearization. It provides measurement outputs via a standard I²C interface. The sensor supports eight I²C addresses, avoiding bus conflicts in multi-sensor use cases.

The ultra-small size of the sensor (WLCSP 1.5 x 1.0 mm) enables accurate body/skin temperature measurements in health and lifestyle monitoring products. In addition to the high accuracy and the small form factor, the AS6221 offers very low power consumption, for example measuring with 4 samples/s, the current consumption is only 6 μA.

KEY FEATURES

• High temperature accuracy of ±0.09°C (20°C to 42°C) – complying with EN 12470-3 for medical thermometers

• • Small form factor WLCSP package – total size 1.5 × 1.0mm

• • Ultra-low-power consumption: 6µA @ 4 samples/sec (typical), 0.1 μA @ standby (typical)

• • No calibration or linearization required

• • Full-digital system with up to 8 I²C addresses

• • Programmable alert output pin - no need to constantly poll the sensor

   

OUTSTANDING BENEFITS

• • Best-in-class accuracy

• • Space saving with ultra-small integration size

• • Superior power efficiency for better battery endurance

• • Easy-to-use solution for fast go-to-market

• • Enables multi device application development

• • Easy to integrate with serial bus connection

• • Alert functionality for advanced system power reduction

   

KEY APPLICATIONS