EVAL-KXR94-2353【PDF 1/15 页】BOARD EVALUATION FOR KXR94-2353

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PART NUMBER:

± 2g Tri-axis Digital

Accelerometer Specifications

Product Description

The KXR94-2353 is a Tri-axis, silicon micromachined

accelerometer with a full-scale output range of +/-2g (19.6

KXR94-2353

Rev. 3

Nov-2010

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 5 x 1.2 mm DFN plastic package operating from a 2.5 –

5.25V DC supply.

There are 4 factory programmable modes of operation for the KXR94:

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 KXR94

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 KXR94

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 KXR94

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 KXR94-2353 is factory programmed to be in MODE 00.

36 Thornwood Dr. – Ithaca, NY 14850

tel: 607-257-1080 – fax:607-257-1146

www.kionix.com - info@kionix.com

352-1783-1011041430

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