Tri-Axis, User Selectable 2g, 4g, 6g, 8g, Ultra Low Power Digital, 3x3x0.9mm LGA - KXUD9-4100

The KXUD9 is a low-power, tri-axis accelerometer with either I²C or SPI communication protocols, a user-definable low-pass filter and embedded motion wake-up. The KXUD9 offers user-selectable g-ranges of ±2g, ±4g or ±8g and an auxiliary input for A/D conversion. It is delivered in a 3 x 3 x 0.9 mm, 10-pin, LGA package with an operating temperature range of -40°C to +85°C. The KXUD9 operates from a 1.8 V to 3.6 V DC supply.



  • ±2g, ±4g, ±4g or ±8g user-selectable ranges
  • Low current consumption: 0.3 µA in standby, 220 µA at full power
  • User-definable low-pass filter
  • Supply voltage range: 1.8 V to 3.6 V
  • I2C/SPI digital communication interface
  • Auxiliary input for A/D conversion
  • Embedded features
  • Motion detection
  • Self-test function
  • RoHS compliant


  • Low Power
  • Auxiliary Input for A/D Conversion

Related Products

Product Specifications

Axis G Range Sensitivity Noise (µg/√Hz) Resolution Package Size Pins Package Type Interface Output Wakeup Operating Temperature (Min.)[°C] Operating Temperature (Max.)[°C] Supply Voltage [V] Current Consumption
3 2g, 4g, 6g, 8g, User-selectable 819, 410, 273, 205, (counts/g) - 8-bit 3x3x0.9mm 10-pin LGA Digital SPI/I²C No -40 85 2 120-320 μA


Part Number Buy Now Description Documentation
EVAL-KXUD9-4100 Cart KXUD9-4100 Evaluation Board Board Schematic
Board Layout

Developer Tools

Buy Now Description
USBDEVKIT Cart This Kit is composed of a Kionix Evaluation Board on which is soldered a customer-specified 3.3V Kionix accelerometer product, a Silicon Labs C8051F340DK that provides the microprocessor control and USB interface, and a Kionix F340 Adapter Board that provides the link between the Kionix Evaluation Board and the microprocessor.