FTM Board Club
Tri-Axis, User Selectable ± 8g, 16g, 32g, Digital (I2C/SPI) Output, Integrated FIFO/FILO buffer, 3x3x0.9mm LGA - KX224-1053

The KX224-1053 is a tri-axis +/-8g, +/-16g or +/-32g silicon micromachined accelerometer with integrated 2048 byte buffer, orientation, tap/double tap, activity detecting, and Free fall 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 3 x 3 x 0.9 mm LGA plastic package operating from a 1.71 – 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. I2C or SPI digital protocol is used to communicate with the chip to configure and check for updates to the orientation, Directional TapTM detection, Free fall detection and activity monitoring algorithms.

  • Compact form factors 3x3x0.9mm LGA package
  • User selectable higher-g ranges: 8g, 16g, 32g full scale range
  • Frequency response up to 6kHz
  • 0.781Hz to 25.6kHz user configurable Output Data Rates (ODR)
  • 16-bit resolution
  • User-selectable Low Power or High Resolution modes
  • Embedded 2048-byte extra-large FIFO/FILO buffer
  • Digital High-Pass Filter Outputs
  • Internal voltage regulator to maintain constant internal operating voltages throughout the 1.71 - 3.6V input supply range
  • Low Power Consumption with FlexSet™ Performance Optimization
  • Enhanced integrated freefall, directional Tap/Double-TapTM and device-orientation algorithms
  • Digital I2C up to 3.4MHz
  • Digital SPI up to 10MHz
  • Excellent temperature performance
  • High shock survivability (10,000g)
  • Factory Programmed Offset and Sensitivity
  • Self-test Function