Small, Low Power, 3-Axis ± ±1 g
Accelerometer
ADXL321
FEATURES
GENERAL DESCRIPTION
3-axis sensing
Small, low profile package
4 mm × 4 mm × 1.45 mm LFCSP
Low power: 350 μA typical
Single-supply operation: 1.8 V to 3.6 V
10,000 g shock survival
The ADXL326 is a small, low power, complete 3-axis
accelerometer with signal conditioned voltage outputs. The
product measures acceleration with a minimum full-scale range
of ±±6 g. It can measure the static acceleration of gravity in tilt-
sensing applications, as well as dynamic acceleration, resulting
from motion, shock, or vibration.
Excellent temperature stability
Bandwidth adjustment with a single capacitor per axis
RoHS/WEEE lead-free compliant
The user selects the bandwidth of the accelerometer using
the CX, CY, and CZ capacitors at the XOUT, YOUT, and ZOUT pins.
Bandwidths can be selected to suit the application with a
range of 0.5 Hz to ±600 Hz for X and Y axes and a range of
0.5 Hz to 550 Hz for the Z axis.
APPLICATIONS
Cost-sensitive, low power, motion- and tilt-sensing applications
Mobile devices
Gaming systems
The ADXL326 is available in a small, low profile, 4 mm ×
4 mm × ±.45 mm, ±6-lead, plastic lead frame chip scale package
(LFCSP_LQ).
Disk drive protection
Image stabilization
Sports and health devices
FUNCTIONAL BLOCK DIAGRAM
+3V
V
S
ADXL326
X
OUT
~32kΩ
~32kΩ
~32kΩ
OUTPUT AMP
OUTPUT AMP
OUTPUT AMP
C
X
Y
Z
3-AXIS
SENSOR
Y
Z
OUT
C
AC AMP
DEMOD
DC
C
OUT
C
COM
ST
Figure 1.
Rev. 0
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