Datasheet ADXL356, ADXL357 (Analog Devices) - 3

link to page 4 link to page 4 link to page 4 link to page 4 link to page 4
Data Sheet ADXL356/ADXL357 SPECIFICATIONS ANALOG OUTPUT FOR THE ADXL356
TA = 25°C, VSUPPLY = 3.3 V, x-axis acceleration and y-axis acceleration = 0 g, z-axis acceleration = 1 g, and ful -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) ADXL356B, supports two ranges ±10/±20 g ADXL356C, supports two ranges ±10/±40 g Resonant Frequency1 5.5 kHz Nonlinearity ±10 g 0.1 % Cross Axis Sensitivity 1 % SENSITIVITY Ratiometric to V 1P8ANA Sensitivity at X , Y , Z ±10 OUT OUT OUT g 73.6 80 86.4 mV/g ±20 g 36.8 40 43.2 mV/g ±40 g 18.4 20 21.6 mV/g Sensitivity Change due to Temperature T = −40°C to +125°C ±0.01 %/°C A 0 g OFFSET Each axis, ±10 g 0 g Output for X , Y , Z Referred to V /2 −375 ±125 +375 m OUT OUT OUT 1P8ANA g 0 g Offset vs. Temperature (X-Axis, Y-Axis, and Z-Axis)2 T = −40°C to +125°C −0.75 ±0.5 +0.75 m A g/°C Vibration Rectification Error (VRE)3 Offset due to 7.5 g rms vibration, <0.1 g ±10 g range, in a 1 g orientation 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 1500 Hz attenuation SELF TEST Output Change Z-Axis ±10 g range 1.25 g POWER SUPPLY Voltage Range V 4 2.25 2.5 3.6 V SUPPLY V V 2.5 3.6 V DDIO 1P8DIG V , V with Internal Low Dropout V = 0 V 1.62 1.8 1.98 V 1P8ANA 1P8DIG SUPPLY Regulator (LDO) Bypassed Current Measurement Mode V (LDO Enabled) 150 µA SUPPLY V (LDO Disabled) 138 µA 1P8ANA V (LDO Disabled) 12 µA 1P8DIG Standby Mode V (LDO Enabled) 21 µA SUPPLY V (LDO Disabled) 7 µA 1P8ANA V (LDO Disabled) 10 µA 1P8DIG Turn On Time5 10 g range <10 ms Power-off to standby <10 ms OUTPUT AMPLIFIER Swing No load 0.03 V − V 1P8ANA 0.03 Output Series Resistance 32 kΩ Rev. 0 | Page 3 of 42 Document Outline Features Applications Functional Block Diagrams General Description Revision History Specifications Analog Output for the ADXL356 Digital Output for the ADXL357 SPI Digital Interface Characteristics for the ADXL357 I2C Digital Interface Characteristics for the ADXL357 Absolute Maximum Ratings Thermal Resistance Recommended Soldering Profile ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Root Allan Variance (RAV) ADXL357 Characteristics Theory of Operation Applications Information Analog Output Digital Output Axes of Acceleration Sensitivity Power Sequencing Power Supply Description VSUPPLY V1P8ANA V1P8DIG VDDIO Overrange Protection Self Test Filter Serial Communications SPI Protocol I2C Protocol Reading Acceleration or Temperature Data from the Interface FIFO Interrupts DATA_RDY DRDY Pin FIFO_FULL FIFO_OVR Activity NVM_BUSY External Synchronization and Interpolation EXT_SYNC = 00—No External Sync or Interpolation EXT_SYNC = 10—External Sync with Interpolation EXT_SYNC = 01—External Sync and External Clock, No Interpolation Filter ADXL357 Register Map Register Definitions Analog Devices ID Register Address: 0x00, Reset: 0xAD, Name: DEVID_AD Analog Devices MEMS ID Register Address: 0x01, Reset: 0x1D, Name: DEVID_MST Device ID Register Address: 0x02, Reset: 0xED, Name: PARTID Product Revision ID Register Address: 0x03, Reset: 0x01, Name: REVID Status Register Address: 0x04, Reset: 0x00, Name: Status FIFO Entries Register Address: 0x05, Reset: 0x00, Name: FIFO_ENTRIES Temperature Data Registers Address: 0x06, Reset: 0x00, Name: TEMP2 Address: 0x07, Reset: 0x00, Name: TEMP1 X-Axis Data Registers Address: 0x08, Reset: 0x00, Name: XDATA3 Address: 0x09, Reset: 0x00, Name: XDATA2 Address: 0x0A, Reset: 0x00, Name: XDATA1 Y-Axis Data Registers Address: 0x0B, Reset: 0x00, Name: YDATA3 Address: 0x0C, Reset: 0x00, Name: YDATA2 Address: 0x0D, Reset: 0x00, Name: YDATA1 Z-Axis Data Registers Address: 0x0E, Reset: 0x00, Name: ZDATA3 Address: 0x0F, Reset: 0x00, Name: ZDATA2 Address: 0x10, Reset: 0x00, Name: ZDATA1 FIFO Access Register Address: 0x11, Reset: 0x00, Name: FIFO_DATA X-Axis Offset Trim Registers Address: 0x1E, Reset: 0x00, Name: OFFSET_X_H Address: 0x1F, Reset: 0x00, Name: OFFSET_X_L Y-Axis Offset Trim Registers Address: 0x20, Reset: 0x00, Name: OFFSET_Y_H Address: 0x21, Reset: 0x00, Name: OFFSET_Y_L Z-Axis Offset Trim Registers Address: 0x22, Reset: 0x00, Name: OFFSET_Z_H Address: 0x23, Reset: 0x00, Name: OFFSET_Z_L Activity Enable Register Address: 0x24, Reset: 0x00, Name: ACT_EN Activity Threshold Registers Address: 0x25, Reset: 0x00, Name: ACT_THRESH_H Address: 0x26, Reset: 0x00, Name: ACT_THRESH_L Activity Count Register Address: 0x27, Reset: 0x01, Name: ACT_COUNT Filter Settings Register Address: 0x28, Reset: 0x00, Name: Filter FIFO Samples Register Address: 0x29, Reset: 0x60, Name: FIFO_SAMPLES Interrupt Pin (INTx) Function Map Register Address: 0x2A, Reset: 0x00, Name: INT_MAP Data Synchronization Address: 0x2B, Reset: 0x00, Name: Sync I2C Speed, Interrupt Polarity, and Range Register Address: 0x2C, Reset: 0x81, Name: Range Power Control Register Address: 0x2D, Reset: 0x01, Name: POWER_CTL Self Test Register Address: 0x2E, Reset: 0x00, Name: SELF_TEST Reset Register Address: 0x2F, Reset: 0x00, Name: Reset PCB Footprint Pattern Outline Dimensions Ordering Guide