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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
Small, Low Power, 3-Axis ±2 g
Accelerometer
ADXL327
GENERAL DESCRIPTION
The ADXL327 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 ±2 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 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 1600 Hz for X and Y axes and a range of
0.5 Hz to 550 Hz for the Z axis.
The ADXL327 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
+3V
VS
ADXL327
~32kXOUT
OUTPUT AMP
CDC
3-AXIS
SENSOR
AC AMP
DEMOD
~32k
OUTPUT AMP
CX
YOUT
CY
~32k
OUTPUT AMP
ZOUT
CZ
COM
ST
Figure 1.
Rev. 0
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ADXL327* PRODUCT PAGE QUICK LINKS
Last Content Update: 02/23/2017
COMPARABLE PARTS
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EVALUATION KITS
ADXL327 Breakout Board
DOCUMENTATION
Application Notes
AN-1057: Using an Accelerometer for Inclination Sensing
AN-688: Phase and Frequency Response of iMEMS®
Accelerometers and Gyros
Data Sheet
ADXL327: Small, Low Power, 3-Axis ±2 g Accelerometer
Data Sheet
DESIGN RESOURCES
ADXL327 Material Declaration
PCN-PDN Information
Quality And Reliability
Symbols and Footprints
DISCUSSIONS
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SAMPLE AND BUY
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TECHNICAL SUPPORT
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number.
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ADXL327
TABLE OF CONTENTS
Features .............................................................................................. 1 
Applications....................................................................................... 1 
General Description ......................................................................... 1 
Functional Block Diagram .............................................................. 1 
Revision History ............................................................................... 2 
Specifications..................................................................................... 3 
Absolute Maximum Ratings............................................................ 4 
ESD Caution.................................................................................. 4 
Pin Configuration and Function Descriptions............................. 5 
Typical Performance Characteristics ............................................. 6 
Theory of Operation ...................................................................... 10 
Mechanical Sensor...................................................................... 10 
REVISION HISTORY
8/09—Revision 0: Initial Version
Performance ................................................................................ 10 
Applications Information .............................................................. 11 
Power Supply Decoupling ......................................................... 11 
Setting the Bandwidth Using CX, CY, and CZ.......................... 11 
Self Test ........................................................................................ 11 
Design Trade-Offs for Selecting Filter Characteristics: The
Noise/BW Trade-Off.................................................................. 11 
Use with Operating Voltages Other Than 3 V .......................... 11 
Axes of Acceleration Sensitivity ............................................... 12 
Layout and Design Recommendations ................................... 13 
Outline Dimensions ....................................................................... 14 
Ordering Guide .......................................................................... 14 
Rev. 0 | Page 2 of 16

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ADXL327
SPECIFICATIONS
TA = 25°C, VS = 3 V, CX = CY = CZ = 0.1 μF, acceleration = 0 g, unless otherwise noted. All minimum and maximum specifications are
guaranteed. Typical specifications are not guaranteed.
Table 1.
Parameter
SENSOR INPUT
Measurement Range
Nonlinearity
Package Alignment Error
Interaxis Alignment Error
Cross Axis Sensitivity1
SENSITIVITY (RATIOMETRIC)2
Sensitivity at XOUT, YOUT, ZOUT
Sensitivity Change Due to Temperature3
ZERO g BIAS LEVEL (RATIOMETRIC)
0 g Voltage at XOUT, YOUT
0 g Voltage at ZOUT
0 g Offset vs. Temperature
NOISE PERFORMANCE
Noise Density XOUT, YOUT, ZOUT
FREQUENCY RESPONSE4
Bandwidth XOUT, YOUT5
Bandwidth ZOUT5
RFILT Tolerance
Sensor Resonant Frequency
SELF TEST6
Logic Input Low
Logic Input High
ST Actuation Current
Output Change at XOUT
Output Change at YOUT
Output Change at ZOUT
OUTPUT AMPLIFIER
Output Swing Low
Output Swing High
POWER SUPPLY
Operating Voltage Range
Supply Current
Turn-On Time7
TEMPERATURE
Operating Temperature Range
Conditions
Each axis
Percent of full scale
Each axis
VS = 3 V
VS = 3 V
VS = 3 V
VS = 3 V
No external filter
No external filter
Self test 0 to 1
Self test 0 to 1
Self test 0 to 1
No load
No load
VS = 3 V
No external filter
Min
±2
378
1.3
1.2
−210
+210
+210
1.8
−40
Typ
±2.5
±0.2
±1
±0.1
±1
420
±0.01
1.5
1.5
±1
250
1600
550
32 ± 15%
5.5
+0.6
+2.4
+60
−450
+450
+770
0.1
2.8
350
1
Max Unit
g
%
Degrees
Degrees
%
462 mV/g
%/°C
1.7 V
1.8 V
mg/°C
μg/√Hz rms
Hz
Hz
kHz
−850
+850
+1400
V
V
μA
mV
mV
mV
V
V
3.6 V
μA
ms
+85 °C
1 Defined as coupling between any two axes.
2 Sensitivity is essentially ratiometric to VS.
3 Defined as the output change from ambient-to-maximum temperature or ambient-to-minimum temperature.
4 Actual frequency response controlled by user-supplied external filter capacitors (CX, CY, CZ).
5 Bandwidth with external capacitors = 1/(2 × π × 32 kΩ × C). For CX, CY = 0.003 μF, bandwidth = 1.6 kHz. For CZ = 0.01 μF, bandwidth = 500 Hz. For CX, CY, CZ = 10 μF,
bandwidth = 0.5 Hz.
6 Self test response changes cubically with VS.
7 Turn-on time is dependent on CX, CY, CZ and is approximately 160 × CX or CY or CZ + 1 ms, where CX, CY, CZ are in μF.
Rev. 0 | Page 3 of 16

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ADXL327
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Acceleration (Any Axis, Unpowered)
Acceleration (Any Axis, Powered)
VS
All Other Pins
Output Short-Circuit Duration
(Any Pin to Common)
Temperature Range (Powered)
Temperature Range (Storage)
Rating
10,000 g
10,000 g
−0.3 V to +3.6 V
(COM − 0.3 V) to (VS + 0.3 V)
Indefinite
−55°C to +125°C
−65°C to +150°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
Rev. 0 | Page 4 of 16