AS6221T 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] | 0 to 60 |
| Accuracy | ±0.09°C (20°C to 42°C) |
| Conversion Time [ms] | 36 |
General description
The AS6221T 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 AS6221T, is a complete digital sensor system and 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 AS6221T 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.
This product suits for the following applications:
- Mobile Health
- Wearables
- Fitness trackers and bands
- Electronic devices
- Laptops
- Tablets
- SSDs
- PTC replacement
Technical documents
| Type | Description | Language | ||
|---|---|---|---|---|
| Datasheet | AS6221T datasheet | English |
Environmental documents
| Type | Description | Language | ||
|---|---|---|---|---|
| RoHS Certificate | AS6221T RoHS certificate | English |
Other information
| Type | Description | Language | ||
|---|---|---|---|---|
| Block Diagram | AS6221T block diagram | English | ||
| Image | High resolution image of AS6221T | English |
Related products
AS6221 Temperature Sensor
AS6221
The AS6221 production test setup is calibrated according NIST and the verification equipment is calibrated by an ISO/IEC-17025 accredited laboratory.