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AS6221 Temperature Sensor

High accurate digital temperature sensor

Features

High temperature accuracy
Ultra-low power consumption
Small integration size (WLCSP)
Complete sensor system with serial bus connection
Alert functionality for exact temperature control

Benefits

Enables high accurate skin temperature measurements
Long battery life and low self heating
'Easy to Use' solution, i.e. no calibration or linearization needed
Minimal board space and fast reaction time

Product parameters

Interface	I²C
Supply Voltage [V]	1.71 to 3.6
Consumption [µA]	6 @ 4 samples/s
Dimension [mm]	1.5 x 1
Ambient Temperature Range [°C]	-40 to 125
Accuracy	±0.09°C (20°C to 42°C)
Conversion Time [ms]	36

General description

The AS6221 is a high accurate digital temperature sensor with an accuracy of up to ±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 mm x 1.0 mm) enables accurate body/skin temperature measurements in very small health and lifestyle monitoring products. In addition to the high accuracy and the small form factor, the AS6221 offers a very low power consumption, for example measuring with 4 samples/s, the current consumption is only 6 µA. The sensor has 4 different automatic acquisition modes and keeps the high accuracy over the full supply range from 1.71 to 3.6 V. An integrated alert functionality triggers an interrupt to the micro controller when a temperature threshold is exceeded. The temperature threshold for the alert function can be adjusted in a device register.

The AS6221 production test setup is calibrated according NIST and the verification equipment is calibrated by an ISO/IEC-17025 accredited laboratory.

This product suits for the following applications:

Mobile Health
Wearables
Fitness trackers and bands
Electronic devices
Laptops
Tablets
SSDs
PTC replacement

Tools

Title	Category	Headline	Buy
AS6221 Eval Kit	Application Board	AS6221 Evaluation Kit
AS6221 Demo Kit	Application Board	AS6221 Demo Kit

Resources

	Type	Description	Language
	Driver	AS62XX_Driver_pLinux_v2-0-0.zip Linux driver for ams AS62XX temperature sensor	EN

Technical documents

Type	Description	Language
Datasheet	AS6221 Datasheet - Digital Temperature Sensor	English
Application Note	Thermal Design Guideline for Wearables	English
Application Note	Thermal design guideline for PCB reference design	English
Product Brief	AS6221 features, benefits, applications	English

Environmental documents

	Type	Description	Language
	RoHS Certificate	AS6221 RoHS Certificate	English

Other information

Type	Description	Language
Block Diagram	AS6221 Block Diagram	English
Factsheet	High Accuracy Digital Temperature Sensor	English
Factsheet	Digital Temperature Sensors Factsheet	English
Image	AS6221 WLCSP Picture	English

ams OSRAM temp. sensor film

Watch the amazing benefits of our digital temperature sensor AS6221

Digital temperature sensors from ams OSRAM are the best combination of size, accuracy and current consumption for your design. They meet the highest quality standards to provide you with exceptional reliability over the lifetime of your product.

The latest product of this family, the temperature sensor AS6221 reaches an accuracy of ±0.09°C, which is ideal for healthcare applications, wearables and devices requiring high performance thermal information.

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.

More details about our product portfolio

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Explore our product portfolio

AS6221 Temperature Sensor

High accurate digital temperature sensor

Features

Benefits

Product parameters

General description

This product suits for the following applications:

Tools

Resources

Technical documents

Environmental documents

Other information

Watch the amazing benefits of our digital temperature sensor AS6221

Related boards

AS6221 Evaluation Kit

AS6221 Eval Kit

AS6221 Demo Kit

AS6221 Demo Kit

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AS6200 Temperature Sensor

AS6200

AS6200C Temperature Sensor

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AS6204 Temperature Sensor

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AS621x Temperature Sensors

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