Datasheet ADIS16489 (Analog Devices) - 5

link to page 28
ADIS16489 Data Sheet Parameter Test Conditions/Comments Min Typ Max Unit
Linear g Sensitivity ±1 g, 1 σ 0.005 mbar/g Noise 0.025 mbar rms TEMPERATURE SENSOR Scale Factor Output = 0x0000 at 25°C (±5°C) 0.00565 °C/LSB LOGIC INPUTS6 Input Voltage High, V 2.0 V IH Low, V 0.8 V IL RST Pulse Width 1 µs CS Wake-Up Pulse Width 20 µs Input Current Logic 1 (High), I V = 3.3 V 10 µA IH IH Logic 0 (Low), I V = 0 V IL IL All Pins Except RST 10 µA RST Pin 0.33 mA Input Capacitance, C 10 pF IN DIGITAL OUTPUTS Output Voltage High, V I = 0.5 mA 2.4 V OH SOURCE Low, V I = 2.0 mA 0.4 V OL SINK FLASH MEMORY Endurance7 100,000 Cycles Data Retention8 T = 85°C 20 Years J FUNCTIONAL TIMES9 Time until data is available Power-On Start-Up Time 600 ms Back-up 1370 1500 ms Reset Recovery Time10 390 600 ms Sleep Mode Recovery Time 730 1000 µs Flash Memory Update Time11 1.05 6.8 sec Test Time 50 ms On Demand Self Test Time Using internal clock (2460 Hz) 12 ms CONVERSION RATE 2.46 kSPS Initial Clock Accuracy 0.02 % Temperature Coefficient 40 ppm/°C Sync Input Clock12 0.7 2.4 kHz POWER SUPPLY, VDD Operating voltage range, VDD = 3.3 V 3.0 3.6 V Power Supply Current, I 13 Normal mode, µ ± σ 186 mA DD Sleep mode 12.2 mA Power-down mode 37 µA POWER SUPPLY, VDDRTC Operating voltage range 3.0 3.3 3.6 V Real-Time Clock Supply Current Normal mode, VDDRTC = 3.3 V 13 µA 1 The repeatability specifications represent analytical projections based on the following drift contributions and conditions: temperature hysteresis (−40°C to +85°C), electronics drift (high temperature operating life test: 110°C, 500 hours), drift from temperature cycling (JESD22, Method A104-C, Method N, 500 cycles, −55°C to +85°C), rate random walk (10-year projection), and broadband noise. 2 Bias repeatability describes a long-term behavior over a variety of conditions. Short-term repeatability relates to the in-run bias stability and noise density specifications. 3 All specifications associated with the accelerometers relate to the ful -scale range of ±18 g. 4 The relative error assumes that the initial error, at 25°C, is corrected in the end application. 5 Specification assumes a full scale (FS) of 1000 mbar. 6 The digital I/O signals use a 3.3 V system. 7 Endurance is qualified as per JEDEC Standard 22, Method A117, measured at −40°C, +25°C, +85°C, and +125°C. 8 The data retention specification assumes a junction temperature (TJ) of 85°C per JEDEC Standard 22, Method A117. Data retention lifetime decreases with TJ. 9 These times do not include thermal settling and internal filter response times, which may affect overal accuracy. 10 The RST line must be in a low state for at least 10 μs to ensure a proper reset initiation and recovery. 11 Monitoring the data ready signal (see Table 153 for FNCTIO_CTRL configuration) for the return of regular pulsing can help minimize system wait times. 12 The device functions at clock rates below 0.7 kHz but at reduced performance levels. 13 Supply current transients can reach 600 mA during initial startup or reset recovery. Rev. 0 | Page 4 of 39 Document Outline Features Applications General Description Functional block Diagram Revision History Specifications Timing Specifications Register Specific Stall Times Timing Diagrams Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Introduction Register Structure SPI Communication Device Configuration Dual Memory Structure Reading Sensor Data User Register Memory Map User Register Defintions Page 0 (PAGE_ID) Sample Sequence Counter (SEQ_CNT) Status/Error Flag Indicators (SYS_E_FLAG) Self Test Error Flags (DIAG_STS) Alarm Error Flags (ALM_STS) Internal Temperature (TEMP_OUT) Gyroscope Data X-Axis Gyroscope (X_GYRO_LOW, X_GYRO_OUT) Y-Axis Gyroscope (Y_GYRO_LOW, Y_GYRO_OUT) Z-Axis Gyroscope (Z_GYRO_LOW, Z_GYRO_OUT) Gyroscope Resolution Acceleration Data X-Axis Accelerometer (X_ACCL_LOW, X_ACCL_OUT) Y-Axis Accelerometer (Y_ACCL_LOW, Y_ACCL_OUT) Z-Axis Accelerometer (Z_ACCL_LOW, Z_ACCL_OUT) Accelerometer Resolution Barometer Data Barometer (BAROM_LOW, BAROM_OUT) Barometer Resolution Delta Angles X-Axis Delta Angle (X_DELTANG_LOW, X_DELTANG_OUT) Y-Axis Delta Angle (Y_DELTANG_LOW, Y_DELTANG_OUT) Z-Axis Delta Angle (Z_DELTANG_LOW, Z_DELTANG_OUT) Delta Angle Resolution Delta Velocity X-Axis Delta Velocity (X_DELTVEL_LOW, X_DELTVEL_OUT) Y-Axis Delta Velocity (Y_DELTVEL_LOW, Y_DELTVEL_OUT) Z-Axis Delta Velocity (Z_DELTVEL_LOW, Z_DELTVEL_OUT) Delta Velocity Resolution Real-Time Clock Real-Time Clock: Minutes/Seconds (TIME_MS_OUT) Real-Time Clock: Days/Hours (TIME_DH_OUT) Real-Time Clock: Years/Months (TIME_YM_OUT) Product Identification ( PROD_ID) Page 2 (PAGE_ID) Calibration Calibration, Gyroscope Scale (X_GYRO_SCALE) Calibration, Gyroscope Scale (Y_GYRO_SCALE) Calibration, Gyroscope Scale (Z_GYRO_SCALE) Calibration, Accelerometer Scale (X_ACCL_SCALE) Calibration, Accelerometer Scale (Y_ACCL_SCALE) Calibration, Accelerometer Scale (Z_ACCL_SCALE) Calibration, Gyroscope Bias (XG_BIAS_LOW, XG_BIAS_HIGH) Calibration, Gyroscope Bias (YG_BIAS_LOW, YG_BIAS_HIGH) Calibration, Gyroscope Bias (ZG_BIAS_LOW, ZG_BIAS_HIGH) Calibration, Accelerometer Bias (XA_BIAS_LOW, XA_BIAS_HIGH) Calibration, Accelerometer Bias (YA_BIAS_LOW, YA_BIAS_HIGH) Calibration, Accelerometer Bias (ZA_BIAS_LOW, ZA_BIAS_HIGH) Barometers Calibration, Barometer Bias (BR_BIAS_LOW, BR_BIAS_HIGH) Scratch Registers (USER_SCR_x) Flash Memory Endurance Counter (FLSHCNT_LOW, FLSHCNT_HIGH) Page 3 (PAGE_ID) Global Commands (GLOB_CMD) Software Reset Factory Calibration Restore Flash Memory Update Flash Memory Test On Demand Self Test (ODST) Bias Correction Update Auxiliary I/O Line Configuration (FNCTIO_CTRL) Data Ready Indicator Input Sync/Clock Control Alarm Indicator General-Purpose I/O Control (GPIO_CTRL) Miscellaneous Configuration (CONFIG) Point of Percussion Linear Acceleration on Effect on Gyroscope Bias Decimation Filter (DEC_RATE) Continuous Bias Estimation (NULL_CNFG) Power Management (SLP_CNT) FIR Filter Control (FILTR_BNK_0, FILTR_BNK_1) Alarm Configuration (ALM_CNFG_0, ALM_CNFG_1, ALM_CFG_2) Solving for ΔX_ACCL_OUT, ΔZ_GYRO_OUT, ΔY_GYRO_OUT, and ΔX_GYRO_OUT Solving for ΔZ_ACCL_OUT and ΔY_ACCL_OUT X-Axis Gyroscope Alarm (XG_ALM_MAGN) Alarm Example Y-Axis Gyroscope Alarm (YG_ALM_MAGN) Z-Axis Gyroscope Alarm (ZG_ALM_MAGN) X-Axis Accelerometer Alarm (XA_ALM_MAGN) Y-Axis Accelerometer Alarm (YA_ALM_MAGN) Z-Axis Accelerometer Alarm (ZA_ALM_MAGN) Barometer Alarm (BR_ALM_MAGN) Firmware Revision (FIRM_REV) Firmware Revision Day and Month (FIRM_DM) Firmware Revision Year (FIRM_Y) Page 4 (PAGE_ID) Part Identification Numbers (PART_ID1, PART_ID2, PART_ID3, PART_ID4) FIR Filters Page 5, Page 6 (PAGE_ID) FIR Filter Bank A (FIR_COEF_A000 to FIR_COEF_A119) Page 7, Page 8 (PAGE_ID) FIR Filter Bank B (FIR_COEF_B000 to FIR_COEF_B119) Page 9, Page 10 (PAGE_ID) FIR Filter Bank C (FIR_COEF_C000 to FIR_COEF_C119) Page 11, Page 12 (PAGE_ID) FIR Filter Bank D (FIR_COEF_D000 to FIR_COEF_D119) Default Filter Performance Applications Information Mounting Best Practices Evaluation Tools Breakout Board, ADIS16IMU1/PCBZ PC-Based Evaluation, EVAL-ADIS Power Supply Considerations Packaging and Ordering Information Outline Dimensions Ordering Guide