ams OSRAM AG AS6221 high accurate digital temperature sensor

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. 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, e.g., measuring with 4 samples per second (SPS), the current consumption is only 6 μA.

Key features

• High temperature accuracy of ±0.09 °C (20...42 °C)
• Ultra-low-power consumption: 6 µA at 4 SPS (typ.) and 0.1 μA in standby (typ.)
• Small form factor WLCSP package: total size 1.5 × 1.0 mm
• No calibration or linearization required

Additional features

• A fully-digital system with up to eight I²C addresses
• Programmable Alert OUT pin:
• No need to constantly poll the sensor
• 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 a standard serial bus connection
• Alert functionality for advanced system power reduction

Applications

• Medical – temperature sensing on skin
• Wearables
• Mobile Health
• Fitness trackers and bands
• Electronic devices

Available tools

• AS6221 Eval Kit
  • The AS6221 Eval Kit is a simple PCB to enable an easy evaluation of the ams temperature sensor. The board features an AS6221 digital temperature sensor, a decoupling capacitor, and pull-up resistors. The included jumpers are an easy way of setting the eight I²C addresses of the sensor. A 5x1 pin header with a 2.54 mm pitch offers all necessary interfaces to connect the adapter board to your application processor.
  • Order Code: AS6221-EK