ROHM KXTJ3-1057

The KXTJ3 - 1057 is a tri - axis ± 2g ± 4g ± 8g or ± 16g silicon micromachined accelerometer. 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 digital communications. The accelerometer is delivered in a 2×2×0.9 mm LGA plastic package operating from a 1.71V - 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. The I²C digital protocol is used to communicate with the chip to configure the part and monitor outputs.

• Small footprint: 2×2×0.9 mm LGA 12 - pin package (pin - to - pin compatible with KXTJ2)
• Low current consumption: 0.9 μA in standby, 10 μA in Low Power, and 155 μA in High Resolution modes
• Extended user - configurable g - ranges: ± 2g, ± 4g, ± 8g, ± 16g
• 8 - bit, 12 - bit, and 14 - bit resolution modes
• Wide supply voltage range: 1.71V - 3.6V with internal voltage regulator
• High resolution Wake - Up function with threshold configurable down to 3.9 mg
• User - configurable Output Data Rates from 0.781 Hz to 1600 Hz
• I²C digital communication interface up to 3.4 MHz
• Highly configurable interrupt control
• Embedded Low Pass filter
• Improved design to virtually eliminate post reflow offset and sensitivity shifts
• Improved noise performance
• Stable performance over temperature
• High shock survivability
• Self - test function
• RoHS / REACH compliant