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1、 2g Tri-axis Digital Accelerometer Specifications PART NUMBER: KXTE9-2050 Rev. 3 Nov-2009 36 Thornwood Dr. Ithaca, NY 14850 tel: 607-257-1080 fax:607-257-1146 - 2009 Kionix All Rights Reserved 091104-02 Page 1 of 26 Product Description The KXTE9-2050 is a Tri-axis, silicon micromachined accelerome
2、ter with a full-scale output range of +/-2g (19.6 m/s/s). The KXTE9 contains integrated orientation and activity detecting algorithms. The sense element is fabricated using Kionixs proprietary plasma micromachining process technology. Acceleration sensing is based on the principle of a differential
3、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 waf
4、er to the device using a glass frit. A separate ASIC device packaged with the sense element provides signal conditioning, digital communication, and embedded logic for orientation and activity detection. The accelerometer is delivered in a 3 x 3 x 0.9 mm LGA plastic package operating from a 1.8 3.6V
5、 DC supply. An I2C interface is used for communication with the chip to configure and check updates to the orientation and activity algorithms. Functional Diagram 2g Tri-axis Digital Accelerometer Specifications PART NUMBER: KXTE9-2050 Rev. 3 Nov-2009 36 Thornwood Dr. Ithaca, NY 14850 tel: 607-257-1
6、080 fax:607-257-1146 - 2009 Kionix All Rights Reserved 091104-02 Page 2 of 26 Product Specifications Table 1. Mechanical (specifications are for operation at 3.3V and T = 25C unless stated otherwise) Parameters Units Min Typical Max Operating Temperature Range C -40 - 85 Zero-g Offset counts 32 Ze
7、ro-g Offset Accuracy mg -175 0 +175 Zero-g Offset Variation from RT over Temp. mg/C 0.6 Sensitivity counts/g 16 Sensitivity Accuracy % -10 0 +10 Sensitivity Variation from RT over Temp. %/C 0.01 (xy) 0.03 (z) Non-Linearity % of FS 0.1 Cross Axis Sensitivity % 2 Resolution mg 62.5 Table 2. Electrical
8、 (specifications are for operation at 3.3V and T = 25C unless stated otherwise) Parameters Units Min Typical Max Supply Voltage (Vdd)1 Operating V 1.8 3.3 3.6 I/O Pads Supply Voltage (VIO)1 V 1.7 Vdd Operating (full power) 20 30 40 Current Consumption Standby A - 0.1 Output Low Voltage2 V - - 0.3 *
9、Vio Output High Voltage V 0.9 * Vio - - Input Low Voltage V - - 0.2 * Vio Input High Voltage V 0.8 * Vio - - Input Pull-down Current A 0 Power Up Time3 ms 50.5 I2C Communication Rate kHz 400 Output Data Rate (ODR)4 Hz 1 NaN 40 Bandwidth (-3dB) Hz 2000 Notes: 1. Minimum voltage supply of 1.65V can be
10、 used over a reduced operating temperature range of 0C to 45C. 2. Assuming minimum 1.5Kohm I2C pull-up resistor on SCL and SDA. 3. Power up time is to Vdd = valid and device is in active mode. 4. User selectable through I2C. 2g Tri-axis Digital Accelerometer Specifications PART NUMBER: KXTE9-2050 Re
11、v. 3 Nov-2009 36 Thornwood Dr. Ithaca, NY 14850 tel: 607-257-1080 fax:607-257-1146 - 2009 Kionix All Rights Reserved 091104-02 Page 3 of 26 HFTable 3. Environmental Parameters Units Min Typical Max Supply Voltage (Vdd) Absolute Limits V -0.3 - 6.0 Operating Temperature Range C -40 - 85 Storage Tem
12、perature Range C -55 - 150 Mech. Shock (powered and unpowered) g - - 5000 for 0.5ms 10000 for 0.2ms ESD HBM V - - 2000 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 Eur
13、opean Parliament and of the Council of the European Union (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 hom
14、ogenous materials. 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 and less than 900-ppm chlorine. Soldering Soldering recommendations are available upon request or from .
