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ADXL316WBCSZ

P1-P3P4-P6P7-P9P10-P12P13-P14
Small, Low Power,
3-Axis ±16
g
Accelerometer
Data Sheet
ADXL316
Rev. A Document Feedback
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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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2015–2016 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
FEATURES
3-axis sensing with ±16 g minimum measurement range
Small, low profile package
12-lead, 4 mm × 4 mm × 1.45 mm LFCSP
Low quiescent supply current: 350 µA typical
Single-supply operation: 1.8 V to 3.6 V
10,000 g shock survival
Excellent temperature stability
Bandwidth (BW) adjustment with a single capacitor per axis
RoHS/WEEE lead-free compliant
−40°C to +105°C operating temperature range
Qualified for automotive applications
APPLICATIONS
Cost-sensitive, low power, motion and tilt sensing applications
Mobile devices
Gaming systems
Disk drive protection
Image stabilization
Active noise control (ANC)
Sports and health devices
GENERAL DESCRIPTION
The ADXL316 is a small, thin, low power, complete 3-axis
accelerometer with signal conditioned voltage outputs. The
product measures acceleration with a minimum measurement
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 the x and y axes, and a range
of 0.5 Hz to 550 Hz for the z axis.
The ADXL316 is available in a small, low profile, 4 mm × 4 mm ×
1.45 mm, 12-lead, plastic lead frame chip scale package (LFCSP).
FUNCTIONAL BLOCK DIAGRAM
ADXL316
3-AXIS
SENSOR
3V
OUTPUT AMP
OUTPUT AMP
OUTPUT AMP
COM
ST
V
S
C
DC
Y
OUT
Z
OUT
X
OUT
C
X
AC
AMP
R
FILT
R
FILT
R
FILT
DEMOD
C
Y
C
Z
13686-001
Figure 1.
ADXL316 Data Sheet
Rev. A | Page 2 of 14
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
Performance ................................................................................ 10
Applications Information .............................................................. 11
Power Supply Decoupling ......................................................... 11
Setting the Bandwidth Using C
X
, C
Y
, and C
Z
.......................... 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 .............................. 12
Axes of Acceleration Sensitivity ............................................... 12
Layout and Design Recommendations ........................................ 13
Outline Dimensions ....................................................................... 14
Ordering Guide .......................................................................... 14
Automotive Products ................................................................. 14
REVISION HISTORY
8/2016—Rev. 0 to Rev. A
Changes to General Description Section ...................................... 1
10/2015—Revision 0: Initial Version
Data Sheet ADXL316
Rev. A | Page 3 of 14
SPECIFICATIONS
T
A
= 25°C, V
S
= 3 V, C
X
= C
Y
= C
Z
= 0.1 µF, acceleration = 0 g, unless otherwise noted. All minimum and maximum specifications are
guaranteed. Typical specifications are not guaranteed.
Table 1.
Parameter Test Conditions/Comments Min Typ Max Unit
SENSOR INPUT Each axis
Measurement Range
1
±16 ±19
g
Nonlinearity % of measurement range ±0.2 %
Package Alignment Error ±1 Degrees
Interaxis Alignment Error ±0.1 Degrees
Cross Axis Sensitivity
%
SENSITIVITY (RATIOMETRIC)
2
Each axis
Sensitivity at X
OUT
, Y
OUT
, and Z
OUT
V
S
= 3 V 50 57 64 mV/g
Sensitivity Change due to Temperature
3
V
S
= 3 V ±0.5 mV
ZERO g BIAS LEVEL (RATIOMETRIC) Each axis
0 g Voltage at X
OUT
, Y
OUT
, and Z
OUT
V
S
= 3 V, 25°C 1.2 1.5 1.8 V
Initial 0 g Output Deviation from Ideal V
S
= 3 V, 25°C ±100 mV
0 g Offset vs. Temperature ±1 mg/°C
NOISE PERFORMANCE
Output Noise <4 kHz, V
S
= 3 V 1 mV
Noise Density
X
OUT
and Y
OUT
210 µg/√Hz rms
Z
OUT
450 µg/√Hz rms
FREQUENCY RESPONSE
4
X
OUT
and Y
OUT
Bandwidth
5
No external filter 1600 Hz
Z
OUT
Bandwidth
5
No external filter 550 Hz
R
FILT
Tolerance 27 32 37 kΩ
Sensor Resonant Frequency 4.2 kHz
SELF TEST (ST)
6
Logic Input Low
0.3
V
Logic Input High 2.7 V
ST Input Resistance to Ground 30 50 kΩ
Output Change ST = 0 to ST = 1
At X
OUT
−65 −50 −35 mV
At Y
OUT
35 50 65 mV
At Z
OUT
70 90 110 mV
OUTPUT AMPLIFIER
Output Swing
Low No load 0.1 V
High No load 2.8 V
POWER SUPPLY
Operating Voltage Range 1.8 3.6 V
Quiescent Supply Current 350 µA
Turn-On Time
7
10 ms
OPERATING TEMPERATURE RANGE −40 +105 °C
1
Guaranteed by measurement of initial offset and sensitivity.
2
Sensitivity is essentially ratiometric to V
S
. Calculate sensitivity by using a scale factor (mV/V/g). Sensitivity = Scale Factor × V
S
. To calculate minimum and maximum
sensitivity, the scale factors are 15 mV/V/g and 23 mV/V/g, respectively.
3
This parameter is 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 (C
X
, C
Y
, and C
Z
).
5
Bandwidth = 1/(2 × π × 32 kΩ × C). For C
X
, C
Y
= 0.003 µF, the bandwidth = 1.6 kHz. For C
Z
= 0.01 µF, the bandwidth = 500 Hz. For C
X
, C
Y
, and C
Z
= 10 µF, the bandwidth = 0.5 Hz.
6
Self test response changes cubically with V
S
.
7
Larger values of C
X
, C
Y
, and C
Z
increase turn-on time. Turn-on time is approximately 160 × (C
X
, C
Y
, and C
Z
) + 4 ms, where C
X
, C
Y
, C
Z
are in µF.
P1-P3P4-P6P7-P9P10-P12P13-P14

ADXL316WBCSZ

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Manufacturer:
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Description:
Accelerometers Low G XL Noise Cancellation
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