Low Noise, Low Drift, Low Power,
3-Axis MEMS Accelerometer
Enhanced Product
ADXL356-EP
Rev. 0 Document Feedback
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FEATURES
Hermetic package offers excellent long-term stability
0 g offset vs. temperature (all axes): 0.75 mg/°C maximum
Ultralow noise density (all axes): 80 µg/√Hz
Low power, VSUPPLY (LDO enabled)
Measurement mode: 150 µA typical
Standby mode: 21 µA typical
User adjustable analog output bandwidth
Integrated temperature sensor
Voltage range options
VSUPPLY with internal regulators: 2.25 V to 3.6 V
V1P8ANA, V1P8DIG with internal LDO regulator bypassed: 1.8 V
typical ± 10%
14-terminal, 6.0 mm × 5.6 mm × 2.05 mm, LCC package,
0.26 g
ENHANCED PRODUCT FEATURES
Supports defense and aerospace applications
(AQEC standard)
Military temperature range: −55°C to +125°C
Controlled manufacturing baseline
One assembly/test site
One fabrication site
Product change notification
Qualification data available on request
APPLICATIONS
Inertial measurement units (IMUs)/altitude and heading
reference systems (AHRSs)
Platform stabilization systems
Structural health monitoring
Seismic imaging
Tilt sensing
Robotics
Condition monitoring
FUNCTIONAL BLOCK DIAGRAM
TEMP
Z
OUT
Y
OUT
X
OUT
V
SUPPLY
V
SSIO
V
SS
ST1
ST2
ADXL356-EP
STBY
V
DDIO
CONTROL
LOGIC
RANGE
TEMP
SENSOR
POWER
MANAGEMENT
ANALOG
FILTER
X
Y
Z
3-AXIS
SENSOR
V
1P8ANA
LDO
V
1P8DIG
LDO
16381-001
Figure 1.
GENERAL DESCRIPTION
The ADXL356-EP is an analog output, low noise density, low
0 g offset drift, low power, 3-axis accelerometer with selectable
measurement ranges. The ADXL356-EP supports the ±10 g and
±40 g ranges.
The ADXL356-EP offers industry leading noise, minimal offset
drift over temperature, and long-term stability, enabling
precision application with minimal calibration.
The low noise of the ADXL356-EP over higher frequencies is
ideal for wireless condition monitoring.
Additional application and technical information can be found
in the ADXL356/ADXL357 data sheet.
1 Protected by U.S. Patents 8,472,270; 9,041,462; 8,665,627; 8,917,099; 6,892,576; 9,297,825; and 7,956,621.
ADXL356-EP Enhanced Product
Rev. 0 | Page 2 of 9
TABLE OF CONTENTS
Features .............................................................................................. 1
Enhanced Product Features ............................................................ 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 5
Thermal Resistance .......................................................................5
ESD Caution...................................................................................5
Pin Configuration and Function Descriptions ..............................6
Typical Performance Characteristics ..............................................7
Outline Dimensions ..........................................................................9
Ordering Guide .............................................................................9
REVISION HISTORY
4/2018—Revision 0: Initial Release
Enhanced Product ADXL356-EP
Rev. 0 | Page 3 of 9
SPECIFICATIONS
TA = 25°C, supply voltage (VSUPPLY) = 3.3 V, x-axis acceleration and y-axis acceleration = 0 g, z-axis acceleration = 1 g, and full-scale range =
±10 g, unless otherwise noted.
Table 1.
Parameter Test Conditions/Comments Min Typ Max Unit
SENSOR INPUT Each axis
Output Full-Scale Range (FSR) Supports two ranges ±10/±40 g
Resonant Frequency1 5.5 kHz
Nonlinearity ±10 g 0.1 %
Cross Axis Sensitivity 1 %
SENSITIVITY Ratiometric to V1P8ANA
Sensitivity at XOUT, YOUT, and ZOUT ±10 g 73.6 80 86.4 mV/g
±40 g 18.4 20 21.6 mV/g
Sensitivity Change Due to Temperature
T
A
= −55°C to +125°C
±0.01
%/°C
0 g OFFSET Each axis, ±10 g
0 g Output for XOUT, YOUT, and ZOUT Referred to V1P8ANA/2 −375 ±125 +375 mg
0 g Offset vs. Temperature (X-Axis, Y-Axis, and Z-Axis)2
TA = −55°C to +125°C −0.75 ±0.5 +0.75 mg/°C
Vibration Rectification Error (VRE)
3
Offset due to 7.5 g rms vibration,
±10 g range, in a 1 g orientation
<0.1
g
NOISE DENSITY ±10 g
X-Axis, Y-Axis, and Z-Axis 80 µg/√Hz
Velocity Random Walk X-axis and y-axis 45 µm/sec/√Hr
Z-axis 65 µm/sec/√Hr
BANDWIDTH
Internal Low-Pass Filter Frequency Fixed frequency, 50% response
attenuation
1500 Hz
SELF TEST
Output Change
Z-Axis ±10 g range 1.25 g
POWER SUPPLY
Voltage Range
VSUPPLY4 2.25 2.5 3.6 V
Digital Interface Supply Voltage (VDDIO) V1P8DIG 2.5 3.6 V
Analog Supply (V1P8ANA), Digital Supply (V1P8DIG)
with Internal Low Dropout (LDO) Regulator
Bypassed
VSUPPLY = 0 V 1.62 1.8 1.98 V
Current
Measurement Mode
VSUPPLY (LDO Enabled) 150 µA
V1P8ANA (LDO Disabled) 138 µA
V1P8DIG (LDO Disabled) 12 µA
Standby Mode
VSUPPLY (LDO Enabled) 21 µA
V1P8ANA (LDO Disabled) 7 µA
V1P8DIG (LDO Disabled) 10 µA
Turn On Time5 10 g range <10 ms
Power-off to standby <10 ms
OUTPUT AMPLIFIER
Swing No load 0.03 V1P8ANA −
0.03
V
Output Series Resistance 32 kΩ
ADXL356-EP Enhanced Product
Rev. 0 | Page 4 of 9
Parameter Test Conditions/Comments Min Typ Max Unit
TEMPERATURE SENSOR
Output at 25°C 963.3 mV
Scale Factor 3.0 mV/°C
TEMPERATURE
Operating Temperature Range −55 +125 °C
1 The resonant frequency is a sensor characteristic. An integrated analog 1.5 kHz (−6 dB) sinc low-pass filter that cannot be bypassed limits the actual output response.
2 The temperature change is −55°C to +25°C or +25°C to +125°C.
3 The VRE measurement is the shift in dc offset while the device is subject to 12.5 g rms of random vibration from 50 Hz to 2 kHz. The device under test (DUT) is
configured for the ±10 g range and an output data rate of 4 kHz. The VRE scales with the range setting.
4 When V1P8ANA and V1P8DIG are generated internally, VSUPPLY is valid. To disable the LDO and drive V1P8ANA and V1P8DIG externally, connect VSUPPLY to VSS.
5 Standby to measurement mode; valid when the output is within 5 mg of the final value.
Enhanced Product ADXL356-EP
Rev. 0 | Page 5 of 9
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter Rating
Acceleration (Any Axis, 0.1 ms) 5000 g
V
SUPPLY
, V
DDIO
5.4 V
V1P8ANA, V1P8DIG Configured as Inputs 1.98 V
Digital Inputs (RANGE, ST1, ST2, STBY) −0.3 V to VDDIO + 0.3 V
Analog Outputs (XOUT, YOUT, ZOUT, TEMP) −0.3 V to V1P8ANA + 0.3 V
Operating Temperature Range −55°C to +125°C
Storage Temperature Range −65°C to +150°C
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
THERMAL RESISTANCE
Thermal performance is directly linked to printed circuit board
(PCB) design and operating environment. Careful attention to
PCB thermal design is required.
θJA is the natural convection junction to ambient thermal
resistance measured in a one cubic foot sealed enclosure.
Table 3. Thermal Resistance
Package Type θJA Unit
E-14-11 42 °C/W
1 Thermal impedance simulated values are based on a JEDEC 2S2P thermal
test board with four thermal vias. See JEDEC JESD51.
ESD CAUTION
ADXL356-EP Enhanced Product
Rev. 0 | Page 6 of 9
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
ADXL356-EP
TOP VIEW
(No t t o Scale)
VSUPPLY
V1P8ANA
VSS
V1P8DIG
RANGE
ST1
ST2
TEMP
11
10
9
ZOUT
YOUT
XOUT
14
13
12
8
1
2
3
VDDIO
VSSIO
STBY
5
6
7
4
X
Z
Y
16381-006
Figure 2. Pin Configuration
Table 4. Pin Function Descriptions
Pin No. Mnemonic Description
1 RANGE Range Selection Pin. Set this pin to ground to select the ±10 g range, or set RANGE to VDDIO to select the ±40 g range.
2
ST1
Self Test Pin 1. This pin enables self test mode.
3 ST2 Self Test Pin 2. This pin activates the electromechanical self test actuation.
4 TEMP Temperature Sensor Output.
5 VDDIO Digital Interface Supply Voltage.
6 VSSIO Digital Ground.
7 STBY Standby or Measurement Mode Selection Pin. Set STBY to ground to enter standby mode, or set STBY to VDDIO to
enter measurement mode.
8 V1P8DIG Digital Supply. This pin requires a decoupling capacitor. If VSUPPLY connects to VSS, supply the voltage to this pin externally.
9 VSS Analog Ground.
10 V1P8ANA Analog Supply. This pin requires a decoupling capacitor. If VSUPPLY connects to VSS, supply the voltage to this pin externally.
11 VSUPPLY Supply Voltage. When VSUPPLY equals 2.25 V to 3.6 V, VSUPPLY enables the internal LDO regulators to generate V1P8DIG
and V1P8ANA. For VSUPPLY = VSS, V1P8DIG and V1P8ANA are externally supplied.
12 XOUT X-Axis Output.
13 YOUT Y-Axis Output.
14 ZOUT Z-Axis Output.
Enhanced Product ADXL356-EP
Rev. 0 | Page 7 of 9
TYPICAL PERFORMANCE CHARACTERISTICS
All figures include data for multiple devices and multiple lots, and they were taken in the ±10 g range, unless otherwise noted.
–75
–50
–25
0
25
50
75
–55 –40 –25 –10 520 35 50 65 80 95 110 125
OFFSET NORMALIZED (mg)
TEMPERATURE (° C)
16381-014
Figure 3. X-Axis Zero g Offset Normalized Relative to 25°C vs. Temperature
for Multiple Devices
–75
–50
–25
0
25
50
75
–55 –40 –25 –10 520 35 50 65 80 95 110 125
OFFSET NORMALIZED (mg)
TEMPERATURE (° C)
16381-015
Figure 4. Y-Axis Zero g Offset Normalized Relative to 25°C vs. Temperature
for Multiple Devices
–75
–50
–25
0
25
50
75
–55 –40 –25 –10 520 35 50 65 80 95 110 125
OFFSET NORMALIZED (mg)
TEMPERATURE (° C)
16381-016
Figure 5. Z-Axis Zero g Offset Normalized Relative to 25°C vs. Temperature
for Multiple Devices
–0.003
–0.002
–0.001
0
0.001
0.002
0.003
0.7
0.8
0.9
1.0
1.1
1.2
1.3
–55 –40 –25 –10 520 35 50 65 80 95 110 125
LINEAR OFFSET (V)
TEMPERATURE SENSOR OUTPUT (V)
TEMPERATURE (° C)
TEMPERATURE
TEMPERATURE OFFSET
16381-050
Figure 6. Temperature Sensor Output and Linear Offset vs. Temperature for
Multiple Devices
ADXL356-EP Enhanced Product
Rev. 0 | Page 8 of 9
–1.0
–0.5
0
0.5
1.0
–55 –35 –15 525 45 65 85 105 125
CHANGE IN SENSITIVITY (%)
TEMPERATURE (° C)
16381-017
Figure 7. X-Axis Change in Sensitivity Relative to 25°C vs. Temperature for
Multiple Devices
–1.0
–0.5
0
0.5
1.0
–55 –40 –25 –10 520 35 50 65 80 95 110 125
CHANGE IN SENSITIVITY (%)
TEMPERATURE (° C)
16381-018
Figure 8. Y-Axis Change in Sensitivity Relative to 25°C vs. Temperature for
Multiple Devices
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
1.0
–55 –40 –25 –10 520 35 50 65 80 95 110 125
CHANGE IN SENSITIVITY (%)
TEMPERATURE (° C)
16381-019
Figure 9. Z-Axis Change in Sensitivity Relative to 25°C vs. Temperature for
Multiple Devices
Enhanced Product ADXL356-EP
Rev. 0 | Page 9 of 9
OUTLINE DIMENSIONS
BOTTOM VIEW
SIDE VIEW
TOP VIEW
0.510 REF
2.20 REF
3.81
REF
2.54 REF 0.914
BSC
0.508
BSC
0.80
BSC
6.25
6.00 SQ
5.85
05-27-2016-B
2.25
2.05
1.85
1
4
57
8
11 12 14
R 0.103
(14 PLCS )
R 0.203
(14 PLCS )
R 0.25
(4 PLCS ) 0.10 BSC
5.60
SQ
0.15
BSC
0.30 SQ
(PIN 1 I NDEX )
PKG-004554
1.674 BSC
DETAIL A
DETAIL A
Figure 10. 14-Terminal Ceramic Leadless Chip Carrier [LCC]
(E-14-1)
Dimensions shown in millimeters
ORDERING GUIDE
Model1 Output Mode
Measurement
Range (g)
Specified
Voltage (V) Temperature Range Package Description
Package
Option
ADXL356TEZ-EP Analog ±10, ±40 3.3 −55°C to +125°C 14-Terminal LCC E-14-1
ADXL356TEZ-EP-RL Analog ±10, ±40 3.3 −55°C to +125°C 14-Terminal LCC, 13” Reel E-14-1
ADXL356TEZ-EP-RL7 Analog ±10, ±40 3.3 −55°C to +125°C 14-Terminal LCC, 7” Reel E-14-1
1 Z = RoHS Compliant Part.
©2018 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D16381-0-4/18(0)
