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2.5g tri - axis analog accelerometer specifications part number: kxth9 - 2083 rev. 3 sep - 2011 36 thornwood dr. C ithaca, ny 14850 ? 2010 kionix C all rights reserved tel: 607 - 257 - 1080 C fax:607 - 257 - 1146 453 - 2470 - 1102251332 www.kionix.com - info@kionix.com page 1 of 11 product description the kxth9 - 2083 is a tri - axis, silicon micromachined accelerometer with a full - scale output range of +/ - 2.5g (24.5 m/s/s). the sense element is fabricated using kionixs proprietary plasma micromachining process technology. accelerati on 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 stre ss. 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 self - test. the accelerometer is delivered in a 3 x 3 x 0.9mm land grid array (lga) plastic package operating from a 1.8 C 3.6 v dc supply. the kxth9 features a factory programmable low pass filter. there are 2 factory programmable modes of operation for the kxth9 : mode 0 0 C the pd pin must be high for normal operation and low for power shutdown. mode 0 1 C the pd pin must be low for normal operation and high for power shutdown. the kxth9 - 2083 is factory programmed to be in mode 01.
2.5g tri - axis analog accelerometer specifications part number: kxth9 - 2083 rev. 3 sep - 2011 36 thornwood dr. C ithaca, ny 14850 ? 2010 kionix C all rights reserved tel: 607 - 257 - 1080 C fax:607 - 257 - 1146 453 - 2470 - 1102251332 www.kionix.com - info@kionix.com page 2 of 11 functional diagram x s e n s o r o s c i l l a t o r 3 s t p d v d d g n d 9 1 y s e n s o r c h a r g e a m p l i f i e r z s e n s o r 4 l o g i c m u x 2 8 6 s 0 s 1 v m u x l p f 7 a u x i n
2.5g tri - axis analog accelerometer specifications part number: kxth9 - 2083 rev. 3 sep - 2011 36 thornwood dr. C ithaca, ny 14850 ? 2010 kionix C all rights reserved tel: 607 - 257 - 1080 C fax:607 - 257 - 1146 453 - 2470 - 1102251332 www.kionix.com - info@kionix.com page 3 of 11 product specifications table 1. mechanical (specifications are for operation at 2.5v and t = 25c unless stated otherwise) parameters units min typical max operating temperature range o c - 40 - 85 zero - g offset v 1.19 1.25 1.31 zero - g offset variation from rt over temp. mg/ o c 0.6 sensitivity mv/g 388 400 412 sensitivity variation from rt over temp. %/ o c 0.01 (xy) 0.04 (z) offset ratiometric error (v dd = 2.5 v 5 %) % 0.3 sensitivity ratiometric error (v dd = 2.5 v 5 %) % 0.6 (xy) 0.3 (z) self test output change on activation g 1 1 0.5 1.5 (x) 1.4 (y) 1 (z) 2 1.8 1.6 mechanical resonance ( - 3db) 1 hz 3500 (xy) 1800 (z) non - linearity % of fs 0.1 cross axis sensitivity % 2 noise density (on filter pins) ? g / hz 150 notes: 1. resonance as defined by the dampened mechanical sensor.
2.5g tri - axis analog accelerometer specifications part number: kxth9 - 2083 rev. 3 sep - 2011 36 thornwood dr. C ithaca, ny 14850 ? 2010 kionix C all rights reserved tel: 607 - 257 - 1080 C fax:607 - 257 - 1146 453 - 2470 - 1102251332 www.kionix.com - info@kionix.com page 4 of 11 table 2. electrical (specifications are for operation at 2.5v and t = 25c unless stated otherwise) parameters units min typical max supply vol tage (v dd ) operating v 1.8 2.5 3.6 current consumption operating (full power) ? a 150 350 550 standby ? a 5 input low voltage v 0.2 * v dd input high voltage v 0.8 * v dd power up time 1 ms - 5*r out *c - mux switching time 2 s 5 bandw idth ( - 3db) 3 hz 40 50 60 notes: 1. power up time is determined by 5 times the rc time constant of the factory programmed or user defined low pass filter. 2. mux switching time is defined as a transition from 10% to 90% with a 10pf load. 3. factory programmabl e to have a switched capacitor low pass filter at 2khz, 1khz, 500hz, 100hz, 50hz , or no low pass filter. optionally, the user can define with external capacitors. maximum defined by the frequency response of the sensors.
2.5g tri - axis analog accelerometer specifications part number: kxth9 - 2083 rev. 3 sep - 2011 36 thornwood dr. C ithaca, ny 14850 ? 2010 kionix C all rights reserved tel: 607 - 257 - 1080 C fax:607 - 257 - 1146 453 - 2470 - 1102251332 www.kionix.com - info@kionix.com page 5 of 11 table 3. environmental para meters units min typical max supply voltage (v dd ) absolute limits v - 0.3 - 6.0 operating temperature range o c - 40 - 85 storage temperature range o c - 55 - 150 mech. shock (powered and unpowered) g - - 5000 for 0.5ms 10000 for 0.2ms esd hbm v - - 3 000 caution: esd sensitive and mechanical shock sensitive component, improper handling can cause permanent damage to the device. this product conforms to directive 2002/95/ec of the european parliament and of the council of the european uni on (rohs). specifically, this product does not contain lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (pbb), or polybrominated diphenyl ethers (pbde) above the maximum concentration values (mcv) by weight in any of its homogenous mat erials. homogenous materials are "of uniform composition throughout." this product is halogen - free per iec 61249 - 2 - 21. specifically, the materials used in this product contain a maximum total halogen content of 1500 ppm with less than 900 - ppm bromine a nd less than 900 - ppm chlorine. soldering soldering recommendations are available upon request or from www.kionix.com . hf
2.5g tri - axis analog accelerometer specifications part number: kxth9 - 2083 rev. 3 sep - 2011 36 thornwood dr. C ithaca, ny 14850 ? 2010 kionix C all rights reserved tel: 607 - 257 - 1080 C fax:607 - 257 - 1146 453 - 2470 - 1102251332 www.kionix.com - info@kionix.com page 6 of 11 application schematic table 4. kxth9 pin descrip tions pin name description 1 vdd the power supply input. decouple this pin to ground with a 0.1uf ceramic capacitor (c 1 ). 2 s0 mux selector 0 (see output select table). 3 st self test: high - device is in self - test mode; low - normal operation 4 p d power shutdown: low - normal operation; high - device is in standby, power down mode 5 nc not connected internally (can be connected to vdd or gnd) 6 m ux out multiplexed analog output. 7 aux in auxiliary input for multiplexer. connect to vdd or g round if not used. 8 s1 mux selector 1 (see output select table). 9 gnd ground 10 nc not connected internally (can be connected to vdd or gnd) 1 2 3 4 5 6 7 8 9 1 0 g n d k x t h 9 a u x i n v d d s 1 m u x o u t s 0 s t p d c 1
2.5g tri - axis analog accelerometer specifications part number: kxth9 - 2083 rev. 3 sep - 2011 36 thornwood dr. C ithaca, ny 14850 ? 2010 kionix C all rights reserved tel: 607 - 257 - 1080 C fax:607 - 257 - 1146 453 - 2470 - 1102251332 www.kionix.com - info@kionix.com page 7 of 11 application design equations the bandwidth is determined by a factory pro g rammable switched capacitor f ilter. the filter can be set at the factory to be 2khz, 1khz, 500hz, 100hz, 50hz , or no low pass filter . alternatively, bandwidth can be reduced by addition of a capacitor on the output pins 5 , 6 , and 7 according to the equation: using the multiplexed output of the kxth9 multiplexer data select the kxth9 features an integrated 4 - channel multiplexer. this feature reduces system mcu requirements to only 1 adc and 2 digital i/os. the kxth9 uses two select inputs (s0, s1) to contro l the data flow from vmux. when a microprocessor toggles the select inputs, the desired output is attained based on the select table. note that logic 0 is gnd and logic 1 is vdd. out put select table data sampling rate when operating in its multiplexed mode, the kxth9 has the ability to achieve very high data sampling rates. internally, the sensor elements (x, y, and z) are sequentially sampled in a round robin fashion at a rate of 32 khz per axis. combine this high sensor element sampling rate with the short 5 s settling time of the integrated multiplexer, and the user can achieve a performance very close to that of the 3 separate analog outputs. this is more than sufficient to el iminate any aliasing in the final application since the kxth9 will be operating with a typical bandwidth of ~50hz and a maximum of 1000hz. s1 s0 vmux 0 0 x output 0 1 y output 1 0 z output 1 1 aux in bw f x c c c 6 4 3 2 10 97 . 4 ? ? ? ?
2.5g tri - axis analog accelerometer specifications part number: kxth9 - 2083 rev. 3 sep - 2011 36 thornwood dr. C ithaca, ny 14850 ? 2010 kionix C all rights reserved tel: 607 - 257 - 1080 C fax:607 - 257 - 1146 453 - 2470 - 1102251332 www.kionix.com - info@kionix.com page 8 of 11 test specifications ! special characteristics : these characteristics have been identified as being critical to the customer. every part is tested to verify its conformance to specification prior to shipment. table 5. test specifications parameter specification test conditions zero - g offset @ rt 1.25 +/ - 0.06 v 25c, vdd = 2.5 v sensitivity @ rt 400 +/ - 12 mv/ g 25c, vdd = 2.5 v current consumption -- operating 150 <= idd <= 550 ua 25c, vdd = 2.5 v
2.5g tri - axis analog accelerometer specifications part number: kxth9 - 2083 rev. 3 sep - 2011 36 thornwood dr. C ithaca, ny 14850 ? 2010 kionix C all rights reserved tel: 607 - 257 - 1080 C fax:607 - 257 - 1146 453 - 2470 - 1102251332 www.kionix.com - info@kionix.com page 9 of 11 package dimensions and orientation 3 x 3 x 0.9 mm lga all dimensions and tolerances conform to asme y14.5m - 1994
2.5g tri - axis analog accelerometer specifications part number: kxth9 - 2083 rev. 3 sep - 2011 36 thornwood dr. C ithaca, ny 14850 ? 2010 kionix C all rights reserved tel: 607 - 257 - 1080 C fax:607 - 257 - 1146 453 - 2470 - 1102251332 www.kionix.com - info@kionix.com page 10 of 11 orientation when device is accelerated in +x, +y or +z direction, the corresponding output will increase. static x/y/z output response versus orientation to earths surface (1 - g): position 1 2 3 4 5 6 diagram top bottom bottom top x 1.25 v 1.65 v 1.25 v 0.85 v 1.25 v 1.25 v y 1.65 v 1.25 v 0.85 v 1.25 v 1.25 v 1.25 v z 1.25 v 1.25 v 1.25 v 1.25 v 1.65 v 0.85 v x - polarity 0 + 0 - 0 0 y - polarity + 0 - 0 0 0 z - polarity 0 0 0 0 + - (1 - g) earths surfac e pin 1 +x +y +z
2.5g tri - axis analog accelerometer specifications part number: kxth9 - 2083 rev. 3 sep - 2011 36 thornwood dr. C ithaca, ny 14850 ? 2010 kionix C all rights reserved tel: 607 - 257 - 1080 C fax:607 - 257 - 1146 453 - 2470 - 1102251332 www.kionix.com - info@kionix.com page 11 of 11 revision history revision description date 1 initial release 25 - aug - 2010 2 added product photo, corrected naming of pin 6 on table 4. 03 - mar - 2011 3 update self test specifications to include min and max 09 - sep - 2011 "kionix" is a registered trademark of kionix, inc. products described herein are protected by patents issued or pending. no license is granted by implication or otherwise under any patent or other rights of kionix. the information contained herei n is believed to be accurate and reliable but is not guaranteed. kionix does not assume responsibility for its use or distribution. kionix also reserves the right to change product specifications or discontinue t his product at any time without prior not ice. this publication supersedes and replaces all information previously supplied.

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