Small, Low Power, 3-Axis ±16 g
Accelerometer
ADXL326
Rev. 0
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FEATURES
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
Excellent temperature stability
Bandwidth adjustment with a single capacitor per axis
RoHS/WEEE lead-free compliant
APPLICATIONS
Cost-sensitive, low power, motion- and tilt-sensing applications
Mobile devices
Gaming systems
Disk drive protection
Image stabilization
Sports and health devices
GENERAL DESCRIPTION
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 ±16 g. It can measure the static acceleration of gravity in tilt-
sensing applications, as well as dynamic acceleration, resulting
from motion, shock, or vibration.
The user selects the bandwidth of the accelerometer using
the C
X
, C
Y
, and C
Z
capacitors at the X
OUT
, Y
OUT
, and Z
OUT
pins.
Bandwidths can be selected to suit the application with a
range of 0.5 Hz to 1600 Hz for X and Y axes and a range of
0.5 Hz to 550 Hz for the Z axis.
The ADXL326 is available in a small, low profile, 4 mm ×
4 mm × 1.45 mm, 16-lead, plastic lead frame chip scale package
(LFCSP_LQ).
FUNCTIONAL BLOCK DIAGRAM
3-AXIS
SENSOR
AC AMP DEMOD
OUTPUT AMP
OUTPUT AMP
V
S
COM ST
X
OUT
Y
OUT
+3
C
X
C
Y
ADXL326
C
DC
OUTPUT AMP
Z
OUT
C
Z
~32kΩ
~32kΩ
~32kΩ
7948-001
Figure 1.
