link to page 1 link to page 1 link to page 1 link to page 1 link to page 3 link to page 4 link to page 5 link to page 5 link to page 5 link to page 6 link to page 7 link to page 9 link to page 9 link to page 9 link to page 11 link to page 11 link to page 14 link to page 16 link to page 16 link to page 17 link to page 18 link to page 19 link to page 23 link to page 23 link to page 23 link to page 23 link to page 23 link to page 23 link to page 24 link to page 25 link to page 26 link to page 27 link to page 28 link to page 29 link to page 29 ADXL313Data SheetTABLE OF CONTENTS Features .. 1 FIFO ... 15 Applications ... 1 Self Test .. 16 General Description ... 1 Register Map ... 17 Functional Block Diagram .. 1 Register Definitions ... 18 Revision History ... 2 Applications Information .. 22 Specifications ... 3 Power Supply Decoupling ... 22 Absolute Maximum Ratings .. 4 Mechanical Considerations for Mounting .. 22 Thermal Resistance .. 4 Threshold .. 22 ESD Caution .. 4 Link Mode ... 22 Pin Configuration and Function Descriptions ... 5 Sleep Mode vs. Low Power Mode... 22 Typical Performance Characteristics ... 6 Using Self Test ... 23 Theory of Operation .. 8 3200 Hz and 1600 Hz ODR Data Formatting .. 24 Power Sequencing .. 8 Axes of Acceleration Sensitivity ... 25 Power Savings ... 8 Solder Profile ... 26 Serial Communications ... 10 Outline Dimensions ... 27 SPI ... 10 Ordering Guide .. 28 I2C ... 13 Automotive Products ... 28 Interrupts ... 15 REVISION HISTORY 11/15—Rev. A to Rev. B Change to Register 0x02, Table 14 .. 17 Changes to Register 0x02—PARTID (Read Only) Section ... 18 Change to Preheat Time (TSMIN to TSMAX) (tS) Parameter, Table 20 .. 26 11/13—Rev. 0 to Rev. A Changes to Figure 3, Figure 4, and Figure 5 ... 6 4/13—Revision 0: Initial Version Rev. B | Page 2 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION POWER SEQUENCING POWER SAVINGS Power Modes Autosleep Mode Standby Mode SERIAL COMMUNICATIONS SPI I2C INTERRUPTS DATA_READY Activity Inactivity Watermark Overrun FIFO Bypass Mode FIFO Mode Stream Mode Trigger Mode Retrieving Data from FIFO SELF TEST REGISTER MAP REGISTER DEFINITIONS Register 0x00—DEVID_0 (Read Only) Register 0x01—DEVID_1 (Read Only) Register 0x02—PARTID (Read Only) Register 0x03—REVID (Read Only) Register 0x04—XID (Read Only) Register 0x18—SOFT_RESET (Read/Write) Register 0x1E—OFSX (Read/Write), Register 0x1F—OFSY (Read/Write),Register 0x20—OFSZ (Read/Write) Register 0x24—THRESH_ACT (Read/Write) Register 0x25—THRESH_INACT (Read/Write) Register 0x26—TIME_INACT (Read/Write) Register 0x27—ACT_INACT_CTL (Read/Write) ACT_AC/DC and INACT_AC/DC Bits ACT_x and INACT_x Bits Register 0x2C—BW_RATE (Read/Write) LOW_POWER Bit Rate Bits Register 0x2D—POWER_CTL (Read/Write) I2C_Disable Bit Link Bit AUTO_SLEEP Bit Measure Bit Sleep Bit Wake-Up Bits Register 0x2E—INT_ENABLE (Read/Write) Register 0x2F—INT_MAP (Read/Write) Register 0x30—INT_SOURCE (Read Only) Register 0x31—DATA_FORMAT (Read/Write) SELF_TEST Bit SPI Bit INT_INVERT Bit FULL_RES Bit Justify Bit Range Bits Register 0x32 and Register 0x33—DATA_X0, DATA_X1 (Read Only), Register 0x34 and Register 0x35—DATA_Y0, DATA_Y1 (Read Only), Register 0x36 and Register 0x37—DATA_Z0, DATA_Z1 (Read Only) Register 0x38—FIFO_CTL (Read/Write) FIFO_MODE Bits Trigger Bit Samples Bits 0x39—FIFO_STATUS (Read Only) FIFO_TRIG Bit Entries Bits APPLICATIONS INFORMATION POWER SUPPLY DECOUPLING MECHANICAL CONSIDERATIONS FOR MOUNTING THRESHOLD LINK MODE SLEEP MODE vs. LOW POWER MODE USING SELF TEST 3200 Hz AND 1600 Hz ODR DATA FORMATTING AXES OF ACCELERATION SENSITIVITY SOLDER PROFILE OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS