Datasheet

Data Sheet ADXL345
Rev. E | Page 3 of 40
REVISION HISTORY
6/15—Rev. D to Rev. E
Changes to Features Section and General
Description Section ........................................................................... 1
Change to Figure 36 ........................................................................ 15
Change to FIFO Section ................................................................. 21
2/13—Rev. C to Rev. D
Changes to Figure 13, Figure 14, and Figure 15 ............................ 9
Change to Table 15 .......................................................................... 22
5/11—Rev. B to Rev. C
Added Preventing Bus Traffic Errors Section ............................ 15
Changes to Figure 37, Figure 38, Figure 39 ................................. 16
Changes to Table 12 ........................................................................ 19
Changes to Using Self-Test Section ............................................... 31
Changes to Axes of Acceleration Sensitivity Section .................. 35
11/10—Rev. A to Rev. B
Change to 0 g Offset vs. Temperature for Z-Axis Parameter,
Table 1 ................................................................................................. 4
Changes to Figure 10 to Figure 15 .................................................. 9
Changes to Ordering Guide ........................................................... 37
4/10—Rev. 0 to Rev. A
Changes to Features Section and General
Description Section ........................................................................... 1
Changes to Specifications Section ................................................... 3
Changes to Table 2 and Table 3 ....................................................... 5
Added Package Information Section, Figure 2, and Table 4;
Renumbered Sequentially ................................................................ 5
Changes to Pin 12 Description, Table 5 ......................................... 6
Added Typical Performance Characteristics Section ................... 7
Changes to Theory of Operation Section and Power Sequencing
Section .............................................................................................. 12
Changes to Powers Savings Section, Table 7, Table 8, Auto Sleep
Mode Section, and Standby Mode Section .................................. 13
Changes to SPI Section ................................................................... 14
Changes to Figure 36 to Figure 38 ................................................ 15
Changes to Table 9 and Table 10 ................................................... 16
Changes to I
2
C Section and Table 11 ............................................ 17
Changes to Table 12 ........................................................................ 18
Changes to Interrupts Section, Activity Section, Inactivity
Section, and FREE_FALL Section ................................................. 19
Added Table 13 ................................................................................ 19
Changes to FIFO Section ............................................................... 20
Changes to Self-Test Section and Table 15 to Table 18 .............. 21
Added Figures 42 and Table 14 ..................................................... 21
Changes to Table 19 ........................................................................ 22
Changes to Register 0x1D—THRESH_TAP (Read/Write)
Section, Register 0x1E, Register 0x1F, Register 0x20—OFSX,
OFSY, OSXZ (Read/Write) Section, Register 0x21—DUR
(Read/Write) Section, Register 0x22—Latent (Read/Write)
Section, and Register 0x23—Window (Read/Write) Section ... 23
Changes to ACT_X Enable Bits and INACT_X Enable Bit
Section, Register 0x28—THRESH_FF (Read/Write) Section,
Register 0x29—TIME_FF (Read/Write) Section, Asleep Bit
Section, and AUTO_SLEEP Bit Section ....................................... 24
Changes to Sleep Bit Section ......................................................... 25
Changes to Power Supply Decoupling Section, Mechanical
Considerations for Mounting Section, and Tap Detection
Section .............................................................................................. 27
Changes to Threshold Section ....................................................... 28
Changes to Sleep Mode vs. Low Power Mode Section ............... 29
Added Offset Calibration Section ................................................. 29
Changes to Using Self-Test Section .............................................. 30
Added Data Formatting of Upper Data Rates Section, Figure 48,
and Figure 49 ................................................................................... 31
Added Noise Performance Section, Figure 50 to Figure 52, and
Operation at Voltages Other Than 2.5 V Section ....................... 32
Added Offset Performance at Lowest Data Rates Section and
Figure 53 to Figure 55 ..................................................................... 33
6/09—Revision 0: Initial Version