AD22280

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

AD22280 is a low-power motion sensor from Analog Devices Inc. It is specifically designed for measuring the acceleration or vibration of a body in a range of up to ±25g. The device offers modern, easy-to-use features such as temperature compensation, low current consumption and high-resolution, ensuring reliable operation over the wide temperature range. All these features are realized through the use of a proprietary capacitive sensing technology.

Application Field

The AD22280 is primarily used in applications where lightweight, low-power motion sensing is required, such as hand-held devices (PDAs, cellular phones, gaming platforms etc.), wearable medical or fitness products, vibration monitoring systems, automotive safety systems, robots, drones and aerial vehicles. It is important to note that acceleration sensing is different from acceleration measurement. This means that the device can detect subtle changes in acceleration over time and thus distinguish between different types of motion.

Working Principle

The AD22280 utilizes capacitive acceleration sensing technology. This is typically implemented with two parallel plates between which a thin dielectric layer is inserted. The composition and thickness of this dielectric layer is adjusted to yield an optimal sensitivity-to-accuracy trade-off. When a body moves, the capacitive plates experience a changing electric field effect and the resulting changes in capacitance are used to calculate the acceleration. The AD22280 features on-board electronics, a microcontroller and a digital output, which makes it possible to efficiently process the raw acceleration data.

The device makes use of temperature compensation in order to maintain a high accuracy even over a wide temperature range. The temperature-compensated output is achieved by an on-board digital signal processor using the equation below:

FinalAD22280 = (RawAD22280 - T0comp) * ((T-T0comp)/(T0 -T0comp))

Where T0 and T0comp are the reference temperature and the temperature of the compensation, respectively. The AD22280 is capable of precise measurement and amplification within a wide temperature range from -40°C (-40°F) to 85°C (185°F). It consumes very low power, and its active current is typically less than 0.5mA over the whole voltage range.

Conclusion

The AD22280 is an efficient motion sensor from Analog Devices Inc., specifically designed for measuring the acceleration or vibration of a body. It is suitable for a wide range of applications, such as hand-held devices, wearable medical or fitness products, vibration monitoring systems, automotive safety systems, robots, and drones. It utilizes capacitive acceleration sensing technology and features temperature compensation, low current consumption and high resolution. The AD22280 is capable of precise measurement and amplification within a wide temperature range, while consuming very low power.

The specific data is subject to PDF, and the above content is for reference