ROHM KX112-1042-EVB0A0

KX112-1042 is a tri-axis ±2g, ±4g, or ±8g silicon micromachined accelerometer integrating a 2048-byte buffer, tilt detection, directional tap/double-tap detection, activity detection, and free-fall algorithms. The sensing element is fabricated using Kionix's proprietary plasma micromachining process technology. Acceleration sensing is based on the differential capacitance principle generated by motion of the sensing element due to acceleration, further utilizing common-mode rejection to reduce errors caused by process variation, temperature, and environmental stress. The sensing element is hermetically sealed at the wafer level by bonding a second silicon cap wafer to the device using frit bonding. A discrete ASIC co-packaged with the sensing element provides signal conditioning and intelligent user-programmable application algorithms. The accelerometer is housed in a 2×2×0.6mm LGA plastic package and operates from a 1.71V–3.6V DC supply. A voltage regulator maintains a constant internal operating voltage across the input supply voltage range, ensuring stable operating characteristics throughout. I²C or SPI digital protocols are used to communicate with the device for configuring and monitoring updates to the tilt, directional tap/double-tap detection, free-fall detection, and activity monitoring algorithms.

• 2×2×0.6mm LGA package
• User-selectable g-range up to ±8g
• User-selectable output data rate up to 25600Hz
• User-selectable low-power or high-resolution mode
• Digital high-pass filter output
• Extra-large embedded 2048-byte FIFO/FILO buffer
• Low power consumption optimized with FlexSet™
• Internal voltage regulator
• Enhanced integrated free-fall, directional tap/double-tap, and device orientation algorithms
• User-configurable wake-up function
• Digital I²C rate up to 3.4MHz, digital SPI rate up to 10MHz
• RoHS-compliant solderability
• Excellent temperature performance
• High shock resistance
• Factory-programmed offset and sensitivity
• Self-test function