Datasheet

± 8g / 16g / 32g / 64g Tri-axis
Digital Accelerometer
Specifications
PART NUMBER:
KX134-1211
Rev. 1.0
31-Jul-2019
36 Thornwood Dr. – Ithaca, NY 14850 © 2019 Kionix – All Rights Reserved
tel: [phone] – fax:[phone]-0.2
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Product Specifications
Mechanical
(specifications are for operation at 2.5V and T = 25C unless stated otherwise)
Parameters
Units
Min
Typical
Max
Operating Temperature Range
ºC
-40
-
+105
Zero-g Offset
mg
±75
±175
Zero-g Offset Variation from RT over Temp.
mg/ºC
0.5
Sensitivity
1
(16 bit)
GSEL1=0, GSEL0=0 (±8g)
counts/g
3768
4096
4424
GSEL1=0, GSEL0=1 (±16g)
1884
2048
2212
GSEL1=1, GSEL0=0 (±32g)
942
1024
1106
GSEL1=1, GSEL0=1 (±64g)
471
512
553
Sensitivity
(Buffer 8-bit mode)
1,2
GSEL1=0, GSEL0=0 (±8g)
counts/g
16
GSEL1=0, GSEL0=1 (±16g)
8
GSEL1=1, GSEL0=0 (±32g)
4
GSEL1=1, GSEL0=1 (±64g)
2
Sensitivity Variation from RT over Temperature
%/ºC
0.01
Positive Self-Test Output change on Activation
3
g
0.1
0.5
0.9
Mechanical Signal Bandwidth (-3dB)
4
Hz
8200 (x)
8500 (y)
5600 (z)
Non-Linearity
% of FS
0.6
Cross Axis Sensitivity
%
2
Noise
5
RMS
mg
1.9
Density
µg/√Hz
300
Table 1: Mechanical Specifications
Notes:
1. Resolution and acceleration ranges are user selectable via I
2
C or SPI
2. Sensitivity is proportional to BRES in BUF_CNTL2.
3. Requires changing of STPOL bit in INC1 register to 1 prior to performing self-test
4. Signal bandwidth varies with Output Data Rate (ODR), and Low Pass Filter setting.
Measured with ODR = 25600Hz, LPRO = 1 settings.
5. Noise varies with ODR, power mode, and the Average Filter Control (AVC) settings.
Measured with RES = 1, ODR = 50Hz, IIR_BYPASS = 0, LPRO = 1 settings.