Description
KX022-1020 ROHM MEMS Accelerometer, 3-Axis, Digital, X, Y, Z, 2g, 4g, 8g, LGA, 3.6 V, 1.8 V , RoHS Compliant
The KX022 is a tri-axis +/-2g, +/-4g or +/-8g silicon micro machined accelerometer with integrated 256 byte buffer, orientation, tap/double tap, and activity detecting algorithms. The sense element is fabricated using Kionixs 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 radiometric error. IC or SPI digital protocol is used to communicate with the chip to configure and check for updates to the orientation, Directional Tap detection and activity monitoring algorithms.
Technical Attributes
Mounting Surface Mount
Axis Type Triple
Product Dimensions 2 x 2 x 0.9
Screening Level Industrial
Supplier Package LGA
Acceleration 2 to 8 G
Operating Supply Voltage 1.8 to 3.6 V
Operating Temperature -40 to 85C
Pin Count 12
Output Type Digital-I2C|Digital-SPI
Manufacturer Part Number: KX022-1020
Manufacturer: Rohm Semiconductor
