KXPS5 Series
Accelerometers and Inclinometers
FEATURES MARKETS
APPLICATIONS
Very Small Package - 3x5x0.9mm LGA
Hard Disk Drives/Laptops
2
I C/SPI Interface and Analog Outputs
Free-fall Detection
Free-fall Interrupt Output
Cell Phones and Handheld PDAs
High-g Motion Interrupt Output
Gesture Recognition
Low Noise
Lead-free Solderability
Game Controllers and Computer Peripherals
Excellent Temperature Performance
Inclination and Tilt Sensing
High Shock Survivability
Cameras and Video Equipment
Low Power Consumption
Image Stabilization
Selectable Power Reduction Modes
Sports Diagnostic Equipment/Pedometers
User Definable Bandwidth
Static or Dynamic Acceleration
Factory Programmable Offset and Sensitivity
Personal Navigation Devices
Self-test Function
Inertial Navigation and Dead Reckoning
PROPRIETARY TECHNOLOGY
These high-performance silicon micromachined linear accelerometers and
inclinometers consist of a sensor element and an ASIC packaged in a
3x5x0.9mm Land Grid Array (LGA). The sensor element is fabricated from
single-crystal silicon with proprietary Deep Reactive Ion Etching (DRIE)
processes, and is protected from the environment by a hermetically-sealed
silicon cap at the wafer level.
The KXPS5 series is designed to provide a high signal-to-noise ratio with
excellent performance over temperature. These sensors can accept supply
voltages between 1.8V and 5.25V. Sensitivity is factory programmable
allowing customization for applications requiring from 1.5g to 6.0g rang-
es. Sensor bandwidth is user-definable. Interrupts can be generated for
acceleration on any axis above a threshold value (Motion Interrupt) or for
acceleration on all three axes below a threshold value (Free-fall Interrupt).
The sensor element functions on the principle of differential capacitance.
Acceleration causes displacement of a silicon structure resulting in a
change in capacitance. An ASIC, using a standard CMOS manufacturing
process, detects and transforms changes in capacitance into an analog out-
put voltage, which is proportional to acceleration. This voltage is digitized
by an on-board A/D converter and is accessed via an inter-integrated cir-
2
cuit (I C) bus or serial peripheral interface (SPI).
36 Thornwood Dr. - Ithaca, NY 14850 USA tel: 607-257-1080 - fax: 607-257-1146 - www.kionix.com - info@kionix.com
Kionix is a registered trademark of Kionix, Inc. Products described herein are protected by patents issued or pending. Information provided
Kionix 2010 All Rights Reserved
in this document is believed to be accurate and reliable but is not guaranteed. Kionix does not assume responsibility for its use or distribution.
January 17, 2011 Rev. 6.3
No license is granted by implication or otherwise under any patent or other rights of Kionix. Kionix reserves the right to change product
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specifications or discontinue this product at any time without prior notice.
KXPS5 Series
Accelerometers and Inclinometers
PERFORMANCE SPECIFICATIONS
The performance parameters below are programmed and tested at 3.3 volts. However, the device can be factory
programmed to accept supply voltages from 1.8 V to 5.25 V. Performance parameters will change with supply
voltage variations.
PERFORMANCE SPECIFICATIONS
PARAMETERS UNITS KXPS5-3157 CONDITION
1
Range g 3.0 Factory programmable
Sensitivity mV/g 440 typical (449 max) 12 bit operation
0g Offset vs. Temp. mg/C 1 max
Sensitivity vs. Temp %/C 0.03 max
175 (typical)
Noise g / Hz
250 (max)
2
Bandwidth Hz 1000 -3dB
Non-Linearity % of FS 0.1 typical (0.5 max) % of full scale output
Ratiometric Error % 3.5 max Vdd=3.3V 10%
Cross-axis Sensitivity % 2.0 typical (3.0 max)
A/D Conversion Time S 200 typical
3
SPI Communication Rate MHz 1 typical
2
I C Communication Rate KHz 400 typical
Power Supply V 3.3 Standard
A 800 typical (1000 max) Operating
Current Consumption
A 0.0012 typical Standby
ENVIRONMENTAL SPECIFICATIONS
PARAMETERS UNITS KXPS5-3157 CONDITION
Operating Temperature C -40 to 85 Powered
Storage Temperature C -55 to 150 Un-powered
Powered or un-powered,
Mechanical Shock g 5000
0.5 msec halversine
ESD V 2000 Human body model
NOTES
1
Custom ranges from 1.5g to 6g available.
2
Internal 1 kHz low pass filter. Lower frequencies are user definable with external capacitors.
3
SPI communication rate can be optimized for faster communication.
ORDERING GUIDE
Axis(es) of Range Sensitivity Offset Operating Voltage Temperature
Product Package
Sensitivity (g) (mV/g) (V) (V) (C)
KXPS5-1050 XYZ 2 560 1.40 2.8 -40 to +85 3x5x0.9 LGA
KXPS5-2050 XYZ 2 660 1.65 3.3 -40 to +85 3x5x0.9 LGA
KXPS5-3157 XYZ 3 440 1.65 3.3 -40 to +85 3x5x0.9 LGA
KXPS5-4457 XYZ 3 240 0.90 1.8 -25 to +70 3x5x0.9 LGA
Kionix 2010 All Rights Reserved
January 17, 2011 Rev. 6.3
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