Small, Low Power, 3-Axis ±3 g
i
MEMS
®
Accelerometer
ADXL330
Rev. A
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FEATURES
3-axis sensing
Small, low-profile package
4 mm × 4 mm × 1.45 mm LFCSP
Low power
180 μA at V
S
= 1.8 V (typical)
Single-supply operation
1.8 V to 3.6 V
10,000 g shock survival
Excellent temperature stability
BW 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 ADXL330 is a small, thin, low power, complete 3-axis
accelerometer with signal conditioned voltage outputs, all
on a single monolithic IC. The product measures acceleration
with a minimum full-scale range of ±3 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 ADXL330 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
05677-001
3-AXIS
SENSOR
AC AMP DEMOD
OUTPUT AMP
OUTPUT AMP
OUTPUT AMP
V
S
COM ST
X
OUT
Y
OUT
Z
OUT
+3V
C
X
C
Y
C
Z
ADXL330
R
FILT
R
FILT
R
FILT
C
DC
Figure 1.
