ADXL312WACPZ-RL Analog Devices Inc, ADXL312WACPZ-RL Datasheet
ADXL312WACPZ-RL
Specifications of ADXL312WACPZ-RL
Related parts for ADXL312WACPZ-RL
ADXL312WACPZ-RL Summary of contents
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FEATURES Ultralow power: as low as 57 μA in measurement mode and 0.1 μA in standby mode 3.3 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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ADXL312 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 ESD Caution.................................................................................. 5 Pin Configuration and Function Descriptions............................. ...
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SPECIFICATIONS T = −40°C to +105° 3.3 V, acceleration = 0 g, unless otherwise noted I/O 1 Table 1. Specifications Parameter SENSOR INPUT Measurement Range Nonlinearity Inter-Axis Alignment Error Cross-Axis Sensitivity 2 OUTPUT ...
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ADXL312 1 All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed. 2 Cross-axis sensitivity is defined as coupling between any two axes. 3 Bandwidth is half the output data rate. 4 Self-test change is defined as the ...
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ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Acceleration Any Axis, Unpowered Any Axis, Powered I/O All Other Pins Output Short-Circuit Duration (Any Pin to Ground) Temperature Range Powered Storage Stresses above those listed under Absolute Maximum Ratings ...
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ADXL312 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic 1 GND 2 Reserved 3 GND 4 GND Reserved 8 to19 NC 20 INT1 21 INT2 22 Reserved 23 SDO/ALT ...
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TYPICAL PERFORMANCE CHARACTERISTICS N>1000 unless otherwise noted –150 –120 –90 –60 – ZERO g OFFSET (mg) Figure 3. X-Axis Zero-g Bias. 25° ...
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ADXL312 SENSITIVITY (LSB/g) Figure 9. X-Axis Sensitivity I SENSITIVITY (LSB/g) Figure 10. Y-Axis Sensitivity ...
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SELF-TEST RESPONSE (g) Figure 15. X-Axis Self-Test Delta 3.3 V, 25° I ...
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ADXL312 THEORY OF OPERATION The ADXL312 is a complete 3-axis acceleration measurement system with a selectable measurement range of ±1.5 g, ±3 g, ± ± measures both dynamic acceleration resulting from motion or shock and static ...
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Table 6. Current Consumption vs. Data Rate (T = 25° 3 I/O Output Data Rate (Hz) Bandwidth (Hz) 3200 1600 1600 800 800 400 400 200 200 100 100 ...
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ADXL312 SERIAL COMMUNICATIONS and SPI digital communications are available. In both cases mode is enabled if the CS pin the ADXL312 operates as a slave The CS pin should always be tied high ...
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Table 8. 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 Level ...
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ADXL312 CS t DELAY SCLK t t SETUP HOLD W SDI t SDO SDO DELAY SCLK t t SETUP HOLD R SDI t SDO X SDO CS t DELAY SCLK t t SETUP HOLD R/W SDIO SDO ...
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I C With CS tied high the ADXL312 I/O requiring a simple 2-wire connection as shown in The ADXL312 conforms to the UM10204 I and User Manual, Rev. 03—19 June 2007, available ...
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ADXL312 2 Table 11 Timing (T = 25° Limit Parameter Min f SCL 100 ...
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INTERRUPTS The ADXL312 provides two output pins for driving interrupts: INT1 and INT2. Both interrupt pins are push-pull, low impedance pins with output specifications shown in Table 12. The default configuration of the interrupt pins is active high. This can ...
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ADXL312 FIFO The ADXL312 contains patent pending technology for an embedded memory management system with 32-level FIFO that can be used to minimize host processor burden. This buffer has four modes: bypass, FIFO, stream, and trigger (see Table 21). Each ...
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SELF-TEST The ADXL312 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 in the DATA_FORMAT register, Address 0x31), an electrostatic force is exerted on the mechanical ...
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ADXL312 REGISTER MAP Table 18. Register Map Address Hex Dec Name 0x00 0 DEVID 0x01 to 0x1D Reserved 0x1E 30 OFSX 0x1F 31 OFSY 0x20 32 OFSZ 0x21 33 Reserved 0x22 34 Reserved 0x23 35 Reserved 0x24 ...
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REGISTER DEFINITIONS Register 0x00—DEVID (Read Only The DEVID register holds a fixed device ID code of 0xE5. Register 0x1E, Register 0x1F, Register 0x20—OFSX, OFSY, OFSZ (Read/Write) The OFSX, OFSY, and ...
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ADXL312 the inactivity and activity functions are concurrent. Additional information can be found in the Link Mode section. When clearing the link bit recommended that the part be placed into standby mode and then set back to measurement ...
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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 ±12 g range, must be clipped to ...
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ADXL312 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 D2 ...
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... PCB also help to reduce the effect of system resonance on the performance of the sensor. ACCELEROMETERS PCB MOUNTING POINTS Figure 31. Incorrectly Placed Accelerometers THRESHOLD The lower output data rates are achieved by decimating a common sampling frequency inside the device. The activity detection function is performed using undecimated data. ...
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ADXL312 USING SELF-TEST The self-test change is defined as the difference between the acceleration output of an axis with self-test enabled and the acceleration output of the same axis with self-test disabled (see Endnote 4 of Table 1). This definition ...
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DATA FORMATTING OF UPPER DATA RATES Formatting of output data at the 3200 Hz and 1600 Hz output data rates changes depending on the mode of operation (full- resolution or fixed 10-bit) and the selected output range. When in full-resolution ...
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ADXL312 NOISE PERFORMANCE The specification of noise shown in Table 1 corresponds to the best case noise of the ADXL312 in normal power operation (LOW_POWER bit = 0 in BW_RATE register, Address 0x2C). For normal power operation at data rates ...
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AXES OF ACCELERATION SENSITIVITY Figure 36. Axes of Acceleration Sensitivity (Corresponding Output Voltage Increases When Accelerated Along the Sensitive Axis OUT Y = –1g OUT OUT +1g OUT ...
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ADXL312 SOLDER PROFILE SMAX T SMIN 25 Table 23: Recommended Soldering Profile Profile Feature Average Ramp Rate ( Preheat Minimum Temperature (T ) SMIN Maximum Temperature (T ) SMAX Time ...
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OUTLINE DIMENSIONS PIN 1 INDICATOR 1.55 1.45 1.35 SEATING PLANE 3.60 mm 5.10 0.30 5.00 SQ 0.25 4.90 0. 0.50 BSC 17 16 0.45 TOP VIEW 0.40 0.35 0.05 MAX 0.02 NOM COPLANARITY 0.05 0.20 REF COMPLIANT TO ...
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... ADXL312 ORDERING GUIDE Measurement 1, 2 Model Range ADXL312WACPZ ±1.5 g, ±3 g, ±6 g, ±12 g ADXL312WACPZ-RL ±1.5 g, ±3 g, ±6 g, ±12 g ADXL312ACPZ ±1.5 g, ±3 g, ±6 g, ±12 g ADXL312ACPZ-RL ±1.5 g, ±3 g, ±6 g, ±12 g EVAL-ADXL312Z EVAL-ADXL312Z-M EVAL-ADXL312Z RoHS Compliant Part Qualified for Automotive Applications AUTOMOTIVE PRODUCTS The ADXL312W models are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. Note that these automotive models may have specifications that differ from the commercial models ...