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Dual Axis Accelerometer
GENERAL DESCRIPTION
The ADXL203EB is a simple evaluation board that allows quick
evaluation of the performance of the ADXL203 dual axis ±1.7 g
accelerometer. The ADXL203EB has a 5-pin 0.1 inch spaced
header for access to all power and signal lines that the user can
attach to a prototyping board (breadboard) or wire using a
standard plug. Four holes are provided for mechanical attachment of the ADXL203EB to the application.
The ADXL203EB is 20 mm × 20 mm, with mounting holes set
15 mm × 15 mm at the corners of the PCB.
CIRCUIT DESCRIPTION
The schematic and parts list of the ADXL203EB are shown in
Figure 1. Analog bandwidth can be set by changing capacitors
C2 and C3. See the ADXL203 data sheet for a complete description of the operation of the accelerometer.
The part layout of the ADXL203EB is shown in Figure 2. The
ADXL203EB has two factory-installed 100 nF capacitors (C2
and C3) at X
OUT
and Y
Many applications require a different bandwidth, in which case
the user can change C2 and C3, as appropriate.
SPECIAL NOTES ON HANDLING
The ADXL203EB is not reverse polarity protected. Reversing
the +V supply and ground pins can cause damage to the
ADXL203.
to reduce the bandwidth to 50 Hz.
OUT
0.1µF
Evaluation Board
ADXL203EB
PIN 1
SELF TEST
V
DD
X
C3
0.1µF
OUT
Y
OUT
COMMON
J1
04837-0-001
G
Y
X
+V
ST
C1
ADXL203
C2
0.1µF
TOP VIEW
Figure 1. ADXL203EB Schematic
ADXL203EB
REV. 0
C2
203CE
C3
C1
Dropping the ADXL203EB on a hard surface can generate
several thousand g of acceleration and might exceed the data
sheet absolute maximum limits. See the ADXL203 data sheet for
more information.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
04837-0-002
Figure 2. ADXL203EB Physical Layout
ORDERING GUIDE
Model Package Description
ADXL203EB Evaluation Board
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.
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ADXL203EB
© 2004 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D04837–0–4/04(0)
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