EVAL-KXRB5-2050【PDF 1/12 页】BOARD EVALUATION FOR KXRB5-2050

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PART NUMBER:

± 2g Tri-axis Accelerometer

Specifications

KXRB5-2050

Rev. 1

Oct-2009

Product Description

The KXRB5-2050 is a Tri-axis, silicon micromachined accelerometer with a

full-scale output range of +/-2g (19.6 m/s/s). The sense element is fabricated

using Kionix’s proprietary plasma micromachining process technology.

Acceleration 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 stress. 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

5 x 3 x 0.9 mm LGA plastic package operating from a 2.5 – 5.25V DC supply.

There are 4 factory programmable modes of operation for the KXRB5:

Mode 00 – The three outputs (X, Y, Z) are read through the digital SPI interface, which is also

used to command Selftest and Standby Mode. The digital I/O pads are powered from a

separate power pin, and will interface to 1.8V logic.

Mode 01 – The three outputs (X, Y, Z) are provided on three analog output pins. The KXRB5 also

features an integrated 3-channel multiplexer (X, Y, Z). The Enable pin must be high for

normal operation and low for power shutdown.

Mode 10 – The three outputs (X, Y, Z) are provided on three analog output pins. The KXRB5 also

features an integrated 4-channel multiplexer (X, Y, Z, Aux In). The Enable pin must be

high for normal operation and low for power shutdown.

Mode 11 – The three outputs (X, Y, Z) are provided on three analog output pins. The KXRB5 also

features an integrated 4-channel multiplexer (X, Y, Z, Aux In). The Enable pin must be

low for normal operation and high for power shutdown.

The KXRB5-2050 is factory programmed to be in MODE 10.

36 Thornwood Dr. – Ithaca, NY 14850

tel: 607-257-1080 – fax:607-257-1146

www.kionix.com - info@kionix.com

090909-01

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