Low Noise, Low Drift, Low Power, 3-Axis MEMS Accelerometer ADXL356-EP Enhanced Product FUNCTIONAL BLOCK DIAGRAM 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 g/Hz Low power, VSUPPLY (LDO enabled) Measurement mode: 150 A typical Standby mode: 21 A 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 x 5.6 mm x 2.05 mm, LCC package, 0.26 g V1P8ANA VSUPPLY LDO V1P8DIG POWER MANAGEMENT LDO XOUT YOUT Y X ANALOG FILTER ST1 Z 3-AXIS SENSOR ZOUT TEMP RANGE TEMP SENSOR ADXL356-EP VSSIO VSS CONTROL LOGIC ST2 STBY VDDIO 16381-001 FEATURES Figure 1. ENHANCED PRODUCT FEATURES Supports defense and aerospace applications (AQEC standard) Military temperature range: -55C to +125C 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 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 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. The ADXL356-EP offers industry leading noise, minimal offset drift over temperature, and long-term stability, enabling precision application with minimal calibration. 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. Rev. 0 Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no 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 (c)2018 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com ADXL356-EP Enhanced Product TABLE OF CONTENTS Features .............................................................................................. 1 Thermal Resistance .......................................................................5 Enhanced Product Features ............................................................ 1 ESD Caution...................................................................................5 Applications ....................................................................................... 1 Pin Configuration and Function Descriptions..............................6 Functional Block Diagram .............................................................. 1 Typical Performance Characteristics ..............................................7 General Description ......................................................................... 1 Outline Dimensions ..........................................................................9 Revision History ............................................................................... 2 Ordering Guide .............................................................................9 Specifications..................................................................................... 3 Absolute Maximum Ratings ............................................................ 5 REVISION HISTORY 4/2018--Revision 0: Initial Release Rev. 0 | Page 2 of 9 Enhanced Product ADXL356-EP SPECIFICATIONS TA = 25C, 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 SENSOR INPUT Output Full-Scale Range (FSR) Resonant Frequency 1 Nonlinearity Cross Axis Sensitivity SENSITIVITY Sensitivity at XOUT, YOUT, and ZOUT Sensitivity Change Due to Temperature 0 g OFFSET 0 g Output for XOUT, YOUT, and ZOUT 0 g Offset vs. Temperature (X-Axis, Y-Axis, and Z-Axis) 2 Vibration Rectification Error (VRE) 3 NOISE DENSITY X-Axis, Y-Axis, and Z-Axis Velocity Random Walk BANDWIDTH Internal Low-Pass Filter Frequency SELF TEST Output Change Z-Axis POWER SUPPLY Voltage Range VSUPPLY 4 Digital Interface Supply Voltage (VDDIO) Analog Supply (V1P8ANA), Digital Supply (V1P8DIG) with Internal Low Dropout (LDO) Regulator Bypassed Current Measurement Mode VSUPPLY (LDO Enabled) V1P8ANA (LDO Disabled) V1P8DIG (LDO Disabled) Standby Mode VSUPPLY (LDO Enabled) V1P8ANA (LDO Disabled) V1P8DIG (LDO Disabled) Turn On Time 5 OUTPUT AMPLIFIER Swing Test Conditions/Comments Each axis Supports two ranges Min Max Unit g kHz % % 10/40 5.5 0.1 1 10 g Ratiometric to V1P8ANA 10 g 40 g TA = -55C to +125C Each axis, 10 g Referred to V1P8ANA/2 TA = -55C to +125C Offset due to 7.5 g rms vibration, 10 g range, in a 1 g orientation 10 g Typ 73.6 18.4 80 20 0.01 86.4 21.6 mV/g mV/g %/C -375 -0.75 125 0.5 <0.1 +375 +0.75 mg mg/C g 80 45 65 g/Hz m/sec/Hr m/sec/Hr Fixed frequency, 50% response attenuation 1500 Hz 10 g range 1.25 g X-axis and y-axis Z-axis VSUPPLY = 0 V 2.25 V1P8DIG 1.62 10 g range Power-off to standby No load Output Series Resistance 2.5 2.5 1.8 V V V 150 138 12 A A A 21 7 10 <10 <10 A A A ms ms 0.03 V1P8ANA - 0.03 32 Rev. 0 | Page 3 of 9 3.6 3.6 1.98 V k ADXL356-EP Parameter TEMPERATURE SENSOR Output at 25C Scale Factor TEMPERATURE Operating Temperature Range Enhanced Product Test Conditions/Comments Min Typ Max 963.3 3.0 -55 Unit mV mV/C +125 C 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. The temperature change is -55C to +25C or +25C to +125C. 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. 1 2 3 Rev. 0 | Page 4 of 9 Enhanced Product ADXL356-EP ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE Table 2. Parameter Acceleration (Any Axis, 0.1 ms) VSUPPLY, VDDIO V1P8ANA, V1P8DIG Configured as Inputs Digital Inputs (RANGE, ST1, ST2, STBY) Analog Outputs (XOUT, YOUT, ZOUT, TEMP) Operating Temperature Range Storage Temperature Range Rating 5000 g 5.4 V 1.98 V -0.3 V to VDDIO + 0.3 V -0.3 V to V1P8ANA + 0.3 V -55C to +125C -65C to +150C 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 performance is directly linked to printed circuit board (PCB) design and operating environment. Careful attention to PCB thermal design is required. JA is the natural convection junction to ambient thermal resistance measured in a one cubic foot sealed enclosure. Table 3. Thermal Resistance Package Type E-14-11 1 JA 42 Unit C/W Thermal impedance simulated values are based on a JEDEC 2S2P thermal test board with four thermal vias. See JEDEC JESD51. ESD CAUTION Rev. 0 | Page 5 of 9 ADXL356-EP Enhanced Product 12 XOUT RANGE 1 ST1 2 ST2 3 Y 11 VSUPPLY ADXL356-EP TOP VIEW (Not to Scale) 9 VSS 8 V1P8DIG STBY 7 VSSIO 6 VDDIO 5 TEMP 4 10 V1P8ANA X Z 16381-006 13 YOUT 14 ZOUT PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Figure 2. Pin Configuration Table 4. Pin Function Descriptions Pin No. 1 2 3 4 5 6 7 Mnemonic RANGE ST1 ST2 TEMP VDDIO VSSIO STBY 8 9 10 11 V1P8DIG VSS V1P8ANA VSUPPLY 12 13 14 XOUT YOUT ZOUT Description 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. Self Test Pin 1. This pin enables self test mode. Self Test Pin 2. This pin activates the electromechanical self test actuation. Temperature Sensor Output. Digital Interface Supply Voltage. Digital Ground. Standby or Measurement Mode Selection Pin. Set STBY to ground to enter standby mode, or set STBY to VDDIO to enter measurement mode. Digital Supply. This pin requires a decoupling capacitor. If VSUPPLY connects to VSS, supply the voltage to this pin externally. Analog Ground. Analog Supply. This pin requires a decoupling capacitor. If VSUPPLY connects to VSS, supply the voltage to this pin externally. 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. X-Axis Output. Y-Axis Output. Z-Axis Output. Rev. 0 | Page 6 of 9 Enhanced Product ADXL356-EP TYPICAL PERFORMANCE CHARACTERISTICS 75 75 50 50 OFFSET NORMALIZED (mg) 25 0 -25 -50 35 50 65 80 95 110 125 -75 -55 -40 -25 -10 TEMPERATURE SENSOR OUTPUT (V) 50 25 0 -25 -50 50 65 TEMPERATURE (C) 80 95 110 125 65 80 95 110 125 0.003 TEMPERATURE TEMPERATURE OFFSET 1.2 0.002 1.1 0.001 1.0 0 0.9 -0.001 0.8 -0.002 0.7 -55 -40 -25 -10 16381-015 35 50 Figure 5. Z-Axis Zero g Offset Normalized Relative to 25C vs. Temperature for Multiple Devices 1.3 20 35 TEMPERATURE (C) 75 5 20 5 5 20 35 50 65 TEMPERATURE (C) Figure 4. Y-Axis Zero g Offset Normalized Relative to 25C vs. Temperature for Multiple Devices 16381-016 20 Figure 3. X-Axis Zero g Offset Normalized Relative to 25C vs. Temperature for Multiple Devices OFFSET NORMALIZED (mg) -25 80 95 -0.003 110 125 LINEAR OFFSET (V) 5 TEMPERATURE (C) -75 -55 -40 -25 -10 0 -50 16381-014 -75 -55 -40 -25 -10 25 16381-050 OFFSET NORMALIZED (mg) All figures include data for multiple devices and multiple lots, and they were taken in the 10 g range, unless otherwise noted. Figure 6. Temperature Sensor Output and Linear Offset vs. Temperature for Multiple Devices Rev. 0 | Page 7 of 9 ADXL356-EP Enhanced Product 1.0 1.0 CHANGE IN SENSITIVITY (%) CHANGE IN SENSITIVITY (%) 0.8 0.5 0 -0.5 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -35 -15 5 25 45 65 TEMPERATURE (C) 85 105 125 Figure 7. X-Axis Change in Sensitivity Relative to 25C vs. Temperature for Multiple Devices -1.0 -55 -40 -25 -10 -0.5 20 35 50 65 80 95 110 125 16381-018 CHANGE IN SENSITIVITY (%) 0 TEMPERATURE (C) 35 50 65 80 95 110 125 Figure 9. Z-Axis Change in Sensitivity Relative to 25C vs. Temperature for Multiple Devices 0.5 5 20 TEMPERATURE (C) 1.0 -1.0 -55 -40 -25 -10 5 16381-019 -1.0 -55 16381-017 -0.8 Figure 8. Y-Axis Change in Sensitivity Relative to 25C vs. Temperature for Multiple Devices Rev. 0 | Page 8 of 9 Enhanced Product ADXL356-EP OUTLINE DIMENSIONS DETAIL A 6.25 6.00 SQ 5.85 0.80 BSC 2.25 2.05 1.85 1.674 BSC 0.510 REF 0.30 SQ 12 (PIN 1 INDEX) 14 11 1 DETAIL A R 0.103 (14 PLCS) 3.81 REF 0.508 BSC 4 8 7 PKG-004554 R 0.25 (4 PLCS) TOP VIEW 0.10 BSC R 0.203 (14 PLCS) 0.15 BSC 5 BOTTOM VIEW SIDE VIEW 2.20 REF 2.54 REF 0.914 BSC 05-27-2016-B 5.60 SQ Figure 10. 14-Terminal Ceramic Leadless Chip Carrier [LCC] (E-14-1) Dimensions shown in millimeters ORDERING GUIDE Model 1 ADXL356TEZ-EP ADXL356TEZ-EP-RL ADXL356TEZ-EP-RL7 1 Output Mode Analog Analog Analog Measurement Range (g) 10, 40 10, 40 10, 40 Specified Voltage (V) 3.3 3.3 3.3 Temperature Range -55C to +125C -55C to +125C -55C to +125C Z = RoHS Compliant Part. (c)2018 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D16381-0-4/18(0) Rev. 0 | Page 9 of 9 Package Description 14-Terminal LCC 14-Terminal LCC, 13" Reel 14-Terminal LCC, 7" Reel Package Option E-14-1 E-14-1 E-14-1