EVAL-ADXL346Z Analog Devices Inc, EVAL-ADXL346Z Datasheet
EVAL-ADXL346Z
Specifications of EVAL-ADXL346Z
Related parts for EVAL-ADXL346Z
EVAL-ADXL346Z Summary of contents
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FEATURES Ultralow power: as low as 23 μA in measurement mode and 0.2 μA in standby mode 2.6 V (typical) S Power consumption scales automatically with bandwidth User-selectable resolution Fixed 10-bit resolution Full resolution, where resolution increases ...
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ADXL346 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 Thermal Resistance ...................................................................... 5 Package Information .................................................................... 5 ESD Caution.................................................................................. 5 Pin ...
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SPECIFICATIONS T = 25° 2 1.8 V, acceleration = I/O Table 1. Specifications Parameter SENSOR INPUT Measurement Range Nonlinearity Inter-Axis Alignment Error 3 Cross-Axis Sensitivity OUTPUT RESOLUTION All g ...
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ADXL346 Parameter TEMPERATURE Operating Temperature Range WEIGHT Device Weight 1 All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed. 2 The typical specifications shown are for at least 68% of the population of parts and are based ...
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ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Acceleration Any Axis, Unpowered Any Axis, Powered I/O Digital Pins All Other Pins Output Short-Circuit Duration (Any Pin to Ground) Temperature Range Powered Storage Stresses above those listed under Absolute ...
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ADXL346 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 5. Pin Function Descriptions Pin No. Mnemonic I SCL/SCLK SDA/SDI/SDIO 7 SDO/ALT ADDRESS INT2 INT1 12 ...
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TYPICAL PERFORMANCE CHARACTERISTICS –150 –100 –50 0 ZERO g OFFSET (mg) Figure 4. X-Axis Zero g Offset at 25° –150 –100 –50 0 ZERO g ...
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ADXL346 –3 –2 –1 ZERO g OFFSET TEMPERATURE COEFFICIENT (mg/°C) Figure 10. X-Axis Zero g Offset Temperature Coefficient –3 –2 –1 ZERO g OFFSET TEMPERATURE ...
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SENSITIVITY (LSB/g) Figure 16. X-Axis Sensitivity at 25° 2.6 V, Full Resolution 230 240 250 260 270 SENSITIVITY ...
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ADXL346 100 –0.10 –0.05 0 SENSITIVITY TEMPERATURE COEFFICIENT (%/°C) Figure 22. X-Axis Sensitivity Temperature Coefficient, V 100 –0.10 –0.05 0 ...
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SELF-TEST SHIFT ( g ) Figure 28. X-Axis Self-Test Response at 25° –1.0 –0.9 –0.8 –0.7 –0.6 ...
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ADXL346 THEORY OF OPERATION The ADXL346 is a complete 3-axis acceleration measurement system with a selectable measurement range of ±2 g, ±4 g, ± ± measures both dynamic acceleration resulting from motion or shock and static ...
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POWER SAVINGS Power Modes The ADXL346 automatically modulates its power consumption in proportion to its output data rate, as outlined in Table 7. If additional power savings is desired, a lower power mode is available. In this mode, the internal ...
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ADXL346 SERIAL COMMUNICATIONS and SPI digital communications are available. In both cases mode is enabled if the CS pin the ADXL346 operates as a slave The CS pin should always be tied high ...
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CS t DELAY SCLK t t SETUP HOLD W MB SDI t SDO SDO DELAY SCLK t t HOLD SETUP R MB SDI t SDO SDO DELAY SCLK t t SETUP HOLD R/W MB ...
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ADXL346 Table 9. SPI Digital Input/Output Parameter Digital Input Low Level Input Voltage ( High Level Input Voltage ( Low Level Input Current ( High Level Input Current ( Digital Output Low ...
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I C With CS tied high the ADXL346 I/O requiring a simple 2-wire connection as shown in The ADXL346 conforms to the UM10204 I and User Manual, Rev. 03—19 June 2007, available ...
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ADXL346 2 Table 12 Timing (T = 25° 2 Limit Parameter Min f SCL 100 ...
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INTERRUPTS The ADXL346 provides two output pins for driving interrupts: INT1 and INT2. Both interrupt pins are push-pull, low impedance pins with the output specifications listed in Table 13. The default configuration of the interrupt pins is active high. This ...
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ADXL346 Overrun Bit The overrun bit is set when new data replaces unread data. The precise operation of the overrun function depends on the FIFO mode. In bypass mode, the overrun bit is set when new data replaces unread data ...
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SELF-TEST The ADXL346 incorporates a self-test feature that effectively tests its mechanical and electronic systems simultaneously. When the self-test function is enabled (via the SELF_TEST bit (Bit D7 in the DATA_FORMAT register, Address 0x31), an electrostatic force is exerted on ...
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ADXL346 REGISTER MAP Table 19. Register Map Address Hex Dec Name 0x00 0 DEVID 0x01 to 0x1C Reserved 0x1D 29 THRESH_TAP 0x1E 30 OFSX 0x1F 31 OFSY 0x20 32 OFSZ 0x21 33 DUR 0x22 34 Latent 0x23 ...
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REGISTER DEFINITIONS Register 0x00—DEVID (Read Only The DEVID register holds a fixed device ID code of 0xE6 (346 octal). Register 0x1D—THRESH_TAP (Read/Write) The THRESH_TAP register is eight bits and holds ...
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ADXL346 ACT_x Enable Bits and INACT_x Enable Bits A setting of 1 enables x-, y-, or z-axis participation in detecting activity or inactivity. A setting of 0 excludes the selected axis from participation. If all axes are excluded, the function ...
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When clearing the link bit recommended that the part be placed into standby mode and then set back to measurement mode with a subsequent write. This is done to ensure that the device is properly biased if sleep ...
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ADXL346 Register 0x31—DATA_FORMAT (Read/Write SELF_TEST SPI INT_INVERT 0 FULL_RES The DATA_FORMAT register controls the presentation of data to Register 0x32 through Register 0x37. All data, except that for the ±16 g range, must be clipped ...
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Register 0x39—FIFO_STATUS (Read Only FIFO_TRIG 0 FIFO_TRIG Bit the FIFO_TRIG bit corresponds to a trigger event occurring, and a 0 means that a FIFO trigger event has not occurred. Entries Bits These ...
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ADXL346 Register 0x3C—Orient (Read Only 2D_ORIENT V3 Vx Bits These bits show the validity of the 2D (V2) and 3D (V3) orienta- tions. A value of 1 corresponds to the orientation being valid. ...
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APPLICATIONS INFORMATION POWER SUPPLY DECOUPLING A 1 μF tantalum capacitor ( and a 0.1 μF ceramic capacitor placed close to the ADXL346 supply pins is I/O DD I/O recommended to adequately ...
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ADXL346 INVALIDATES DOUBLE TAP IF SUPRESS BIT IS SET TIME LIMIT FOR TAPS LATENCY TIME WINDOW FOR SECOND (DUR) TIME (LATENT) TAP (WINDOW) Figure 46. Double-Tap Event Invalid Due to High g Event When the Suppress Bit Is Set A ...
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THRESHOLD The lower output data rates are achieved by decimating a common sampling frequency inside the device. The activity, free-fall, and single-tap/double-tap detection functions without improved tap enabled are performed using undecimated data. As the bandwidth of the output data ...
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ADXL346 output in full-resolution is 3 one-quarter of an LSB of the offset register. Because the offset register is additive, the 0 g values are negated and rounded to the nearest LSB of the offset register ...
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... If the device is oriented such that the projection of gravity onto all three axes is nonzero, the effective sensitivity is reduced, causing an increase in the dead zone angle. Therefore, evaluation needs to be performed for specific appli- cation uses to determine the optimal setting for the dead zone. 52.7° ...
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ADXL346 Writing to the BW_RATE register or placing the part into standby mode resets the orientation feature, clearing the orientation filter and the orientation status. These actions cause an orientation interrupt (if enabled), however, if the orientation during the next ...
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NOISE PERFORMANCE The specification of noise shown in Table 1 corresponds to the typical noise performance of the ADXL346 in normal power opera- tion with an output data rate of 100 Hz (LOW_POWER bit = 0, rate = 0x0A in ...
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ADXL346 Changes in noise performance, self-test response, and supply current are discussed elsewhere throughout the data sheet. For more information about noise performance, review the Noise Performance section. The Self-Test section discusses both the operation of self-test over voltage (a ...
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AXES OF ACCELERATION SENSITIVITY Figure 59. Axes of Acceleration Sensitivity (Corresponding Output Increases When Accelerated Along the Sensitive Axis OUT Y = –1g OUT OUT +1g OUT Y ...
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ADXL346 LAYOUT AND DESIGN RECOMMENDATIONS Figure 61 shows the recommended printed wiring board land pattern. Figure 62 and Table 27 provide details about the recommended soldering profile. T Table 27. Recommended Soldering Profile Profile Feature Average Ramp Rate from Liquid ...
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... PLANE ORDERING GUIDE Measurement 1 Model Range (g) ADXL346ACCZ-R2 ±2, ±4, ±8, ±16 ADXL346ACCZ-RL ±2, ±4, ±8, ±16 ADXL346ACCZ-RL7 ±2, ±4, ±8, ±16 EVAL-ADXL346Z EVAL-ADXL346Z-DB EVAL-ADXL346Z-M EVAL-ADXL346Z RoHS Compliant Part. 3.10 3.00 SQ PIN 1 2.90 0.10 0.50 13 BSC 0.50 9 BOTTOM VIEW TOP VIEW 0.275 1 ...
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ADXL346 NOTES refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors). Analog Devices offers specific products designated for automotive applications; please consult your local Analog Devices sales representative for details. Standard products sold ...