Datasheet ADIS16228 (Analog Devices) - 5

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ADIS16228 Data Sheet SPECIFICATIONS
TA = −40°C to +125°C, VDD = 3.3 V, unless otherwise noted.
Table 1. Parameter Test Conditions/Comments Min Typ Max Unit
ACCELEROMETERS Measurement Range1 TA = 25°C ±18 g Sensitivity, FFT TA = 25°C, 0 g to 20 g range setting 0.3052 mg/LSB Sensitivity, Time Domain TA = 25°C 0.6104 mg/LSB Sensitivity Error TA = 25°C ±6 % Nonlinearity With respect to full scale ±0.2 ±1.25 % Cross-Axis Sensitivity 2.6 % Alignment Error With respect to package 1.5 Degrees Offset Error TA = 25°C ±1 g Offset Temperature Coefficient 2 mg/°C Output Noise TA = 25°C, 20.48 kHz sample rate, time domain 12 mg rms Output Noise Density TA = 25°C, 10 Hz to 1 kHz 0.248 mg/√Hz Bandwidth ±5% flatness,2 CAL_ENABLE[4] = 0, see Figure 17 840 Hz ±5% flatness,2 CAL_ENABLE[4] = 1, see Figure 18 5000 Hz Sensor Resonant Frequency 5.5 kHz LOGIC INPUTS3 Input High Voltage, VINH 2.0 V Input Low Voltage, VINL 0.8 V Logic 1 Input Current, IINH VIH = 3.3 V ±0.2 ±1 µA Logic 0 Input Current, IINL VIL = 0 V All Except RST −40 −60 µA RST −1 mA Input Capacitance, CIN 10 pF DIGITAL OUTPUTS3 Output High Voltage, VOH ISOURCE = 1.6 mA 2.4 V Output Low Voltage, VOL ISINK = 1.6 mA 0.4 V FLASH MEMORY Endurance4 10,000 Cycles Data Retention5 TJ = 85°C, see Figure 24 20 Years START-UP TIME6 Initial Startup 202 ms Reset Recovery7 RST pulse low or GLOB_CMD[7] = 1 54 ms Sleep Mode Recovery 2.3 ms CONVERSION RATE REC_CTRL1[11:8] = 0x1 (SR0 sample rate selection) 20.48 kSPS Clock Accuracy 3 % POWER SUPPLY Operating voltage range, VDD 3.0 3.3 3.6 V Power Supply Current Record mode, TA = 25°C 40 48 mA Sleep mode, TA = 25°C 230 µA 1 The maximum range depends on the frequency of vibration. 2 Assumes that frequency flatness calibration is enabled. 3 The digital input/output signals are 5 V tolerant. 4 Endurance is qualified as per JEDEC Standard 22, Method A117 and measured at −40°C, +25°C, +85°C, and +125°C. 5 Retention lifetime equivalent at junction temperature (TJ) = 85°C as per JEDEC Standard 22, Method A117. Retention lifetime depends on junction temperature. 6 The start-up times presented reflect the time it takes for data collection to begin. 7 The RST pin must be held low for at least 15 ns. Rev. E | Page 4 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS Timing Diagrams ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS THEORY OF OPERATION SENSING ELEMENT SIGNAL PROCESSING USER INTERFACE SPI Interface Dual-Memory Structure BASIC OPERATION SPI WRITE COMMANDS SPI READ COMMANDS DATA RECORDING AND SIGNAL PROCESSING RECORDING MODE Manual FFT Mode Automatic FFT Mode Manual Time Capture Mode Real-Time Mode SPECTRAL RECORD PRODUCTION SAMPLE RATE/FILTERING DYNAMIC RANGE/SENSITIVITY Frequency Response Correction Axial Definitions Dynamic Range Settings Scale Adjustment PRE-FFT WINDOWING FFT FFT Averaging RECORDING TIMES DATA RECORDS FFT RECORD FLASH ENDURANCE SPECTRAL ALARMS ALARM DEFINITION Alarm Band Frequency Definitions Alarm Trigger Settings Enable Alarm Settings ALARM INDICATOR SIGNALS ALARM FLAGS AND CONDITIONS ALARM STATUS WORST-CASE CONDITION MONITORING READING OUTPUT DATA READING DATA FROM THE DATA BUFFER ACCESSING FFT RECORD DATA DATA FORMAT REAL-TIME DATA COLLECTION POWER SUPPLY/TEMPERATURE FFT EVENT HEADER SYSTEM TOOLS GLOBAL COMMANDS STATUS/ERROR FLAGS POWER-DOWN OPERATION MANAGMENT Software Busy Indicator Software Escape Code INPUT/OUTPUT FUNCTIONS Busy Indicator Trigger Input Alarm Indicator General-Purpose Input/Output SELF-TEST FLASH MEMORY MANAGEMENT DEVICE IDENTIFICATION APPLICATIONS INFORMATION INTERFACE BOARD FLEX CONNECTOR CARE MATING CONNECTOR OUTLINE DIMENSIONS ORDERING GUIDE