ROHM Semiconductor designs and manufactures integrated circuits, semiconductors and etc. for the consumer electronics, mobile phones, networks market, automotive electronics and other applications.

KONIX (ROHM) KX022-1020-01, ± 2g / 4g / 8g Tri-axis Digital Accelerometer

The KONIX KX022 is a tri-axis ±2g, ±4g or ±8g silicon micromachined accelerometer with integrated 256 byte buffer, orientation, tap/double tap, and activity detecting algorithms. The sense element is fabricated using Kionix’s proprietary plasma micromachining process technology. Acceleration sensing is based on the principle of a differential capacitance arising from acceleration-induced motion of the sense element, which further utilizes common mode cancellation to decrease errors from process variation, temperature, and environmental stress. The sense element is hermetically sealed at the wafer level by bonding a second silicon lid wafer to the device using a glass frit. A separate ASIC device packaged with the sense element provides signal conditioning, and intelligent user-programmable application algorithms. The accelerometer is delivered in a 2 x 2 x 0.9 mm LGA plastic package operating from a 1.8 – 3.6V DC supply. Voltage regulators are used to maintain constant internal operating voltages over the range of input supply voltages. This results in stable operating characteristics over the range of input supply voltages and virtually undetectable ratiometric error. I2C or SPI digital protocol is used to communicate with the chip to configure and check for updates to the orientation, Directional TapTM detection and activity monitoring algorithms.

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Reference Description Action
KX-022-1020-01 The KONIX KX022 is a tri-axis ±2g, ±4g or ±8g silicon micromachined accelerometer with integrated 256 byte buffer, orientation, tap/double tap, and activity detecting algorithms. Contact Us

 

Additional Resources

Name Description Action
Product Specification KX022-1020 Specifications Rev 11.0 Download

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