ADIS16385BMLZ Analog Devices Inc, ADIS16385BMLZ Datasheet

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ADIS16385BMLZ

Manufacturer Part Number
ADIS16385BMLZ
Description
IC, 3 AXES ACCELEROMETER, ±5G, ML-24-2
Manufacturer
Analog Devices Inc
Datasheet

Specifications of ADIS16385BMLZ

No. Of Axes
3
Sensor Case Style
ML-24-2
No. Of Pins
24
Supply Voltage Range
4.85V To 5.15V
Operating Temperature Range
-40°C To +105°C
Supply Voltage
5V
Acceleration Range
2000g
Interface Type
Serial, SPI
Lead Free Status / RoHS Status
Lead free / RoHS non-compliant
FEATURES
Tri-axis digital gyroscope with digital range scaling
In-run bias stability: 6°/hour (yaw), 21°/hour (pitch/roll)
Tri-axis digital accelerometer: ±5 g
Autonomous operation and data collection
Factory-calibrated sensitivity, bias, and axial alignment
Calibration temperature range: −40°C to +85°C
Single serial peripheral interface, SPI-compatible
Wide bandwidth: 330 Hz
Embedded temperature sensor
Programmable operation and control
Single-supply operation: 4.85 V to 5.15 V
2000 g shock survivability
Operating temperature range: −40°C to +105°C
APPLICATIONS
Platform stabilization and control
Navigation
Robotics
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
±75°/sec, ±150°/sec, ±300°/sec settings
Orthogonal alignment: <0.05°
No external configuration commands required
Start-up time: 210 ms
Sleep mode recovery time: 7 ms
Automatic and manual bias correction controls
Digital filters: Bartlett FIR, average/decimation
Digital I/O: data-ready, alarm indicator, general-purpose
Alarms for condition monitoring
Sleep mode for power management
DAC output voltage
Enable external sample clock input: up to 1.2 kHz
Six Degrees of Freedom Inertial Sensor
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
GENERAL DESCRIPTION
The ADIS16385 iSensor® device is a complete inertial system
that includes a tri-axis gyroscope and tri-axis accelerometer. Each
sensor in the ADIS16385 combines industry-leading iMEMS®
technology with signal conditioning that optimizes dynamic
performance. The factory calibration characterizes each sensor
for sensitivity, bias, alignment, and linear acceleration (gyro bias).
As a result, each sensor has its own dynamic compensation formulas
that provide accurate sensor measurements. The yaw-axis gyro-
scope offers a 4× improvement in noise and in-run bias stability
for applications that have greater requirements on one axis.
The ADIS16385 provides a simple, cost-effective method for
integrating accurate, multiaxis inertial sensing into industrial
systems, especially when compared with the complexity and
investment associated with discrete designs. All necessary motion
testing and calibration are part of the production process at the
factory, greatly reducing system integration time. Tight orthogonal
alignment simplifies inertial frame alignment in navigation systems.
The SPI and register structure provide a simple interface for
data collection and configuration control.
The ADIS16385 has a compatible pinout for systems that currently
use ADIS1635x, ADIS1636x, and ADIS1640x IMU products.
It comes in a module that is approximately 36 mm × 47 mm ×
39 mm and has a standard connector interface.
ANGULAR RATE
ACCELERATION
TEMPERATURE
TRI-AXIS MEMS
TRI-AXIS MEMS
SELF-TEST
SENSORS
SENSOR
SENSOR
FUNCTIONAL BLOCK DIAGRAM
AUX_ADC AUX_DAC
RST
©2010 Analog Devices, Inc. All rights reserved.
DIO1 DIO2 DIO3 DIO4/CLKIN
Figure 1.
CONTROL
DIGITAL
ADIS16385
ADIS16385
www.analog.com
CS
SCLK
DIN
DOUT
VCC
GND

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ADIS16385BMLZ Summary of contents

Page 1

FEATURES Tri-axis digital gyroscope with digital range scaling ±75°/sec, ±150°/sec, ±300°/sec settings Orthogonal alignment: <0.05° In-run bias stability: 6°/hour (yaw), 21°/hour (pitch/roll) Tri-axis digital accelerometer: ±5 g Autonomous operation and data collection No external configuration commands required Start-up time: 210 ...

Page 2

ADIS16385 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Timing Specifications .................................................................. 5 Absolute Maximum Ratings ............................................................ 6 ESD Caution .................................................................................. 6 Pin ...

Page 3

... Bias Temperature Coefficient Linear Acceleration Effect on Bias Bias Voltage Sensitivity Output Noise Rate Noise Density 3 dB Bandwidth Sensor Resonant Frequency Self-Test Change in Output Response ACCELEROMETERS Dynamic Range Initial Sensitivity Sensitivity Temperature Coefficient Misalignment Error Nonlinearity Initial Bias Error In-Run Bias Stability ...

Page 4

ADIS16385 Parameter ADC INPUT Resolution Integral Nonlinearity Differential Nonlinearity Offset Error Gain Error Input Range Input Capacitance DAC OUTPUT Resolution Relative Accuracy Differential Nonlinearity Offset Error Gain Error Output Range Output Impedance Output Settling Time 1 LOGIC INPUTS Input High ...

Page 5

TIMING SPECIFICATIONS T = 25°C, VCC = 5 V, unless otherwise noted. A Table 2. Parameter Description f Serial clock SCLK t Stall period between data STALL t Read rate READRATE t Chip select to clock edge CS t DOUT ...

Page 6

ADIS16385 ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Acceleration Any Axis, Unpowered Any Axis, Powered VCC to GND Digital Input Voltage to GND Digital Output Voltage to GND Analog Input to GND Operating Temperature Range Storage Temperature Range 1 Extended exposure ...

Page 7

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS ADIS16385 TOP VIEW (Not to Scale NOTES 1. THIS REPRESENTATION DISPLAYS THE TOP VIEW PINOUT FOR THE MATING SOCKET ...

Page 8

ADIS16385 TYPICAL PERFORMANCE CHARACTERISTICS 0.1 0.01 0.001 1 10 100 TAU (Seconds) Figure 7. Gyroscope Allan Variance, Z-Axis 0.1 0.01 0.001 1 10 100 TAU (Seconds) Figure 8. Gyroscope Allan Variance, X-Axis/Y-Axis 0.001 AVERAGE ±1SIGMA 0.0001 0.00001 1k 10k AVERAGE ...

Page 9

BASIC OPERATION The ADIS16385 is an autonomous system that requires no user initialization. When it has a valid power supply, it initializes itself and starts sampling, processing, and loading sensor data into the output registers at a sample rate of ...

Page 10

ADIS16385 OUTPUT DATA REGISTERS The output registers in Table 8 provide the most recent sensor data produced by the ADIS16385. All of the inertial sensor outputs use a 16-bit, twos complement data format. Figure 6 provides arrows to describe the ...

Page 11

USER REGISTERS Table 13. User Register Memory Map Name R/W Flash Backup FLASH_CNT R Yes Reserved N/A N/A XGYRO_OUT R No YGYRO_OUT R No ZGYRO_OUT R No XACCL_OUT R No YACCL_OUT R No ZACCL_OUT R No TEMP_OUT R No AUX_ADC ...

Page 12

ADIS16385 SYSTEM FUNCTIONS The ADIS16385 provides a number of system-level controls for managing its operation, using the registers in Table 14. Table 14. System Tool Registers Register Name Address Description MSC_CTRL 0x34 Self-test, calibration, data-ready SLP_CTRL 0x3A Sleep mode control ...

Page 13

... The movement in each element simulates its response to actual rotation/acceleration and generates a predictable electrical response in the sensor outputs. Table 1 provides the expected response for both gyroscopes and accelerometers that can help establish pass/fail limits during system-level diagnostic testing. Table 21. MSC_CTRL Bit Descriptions Bits ...

Page 14

ADIS16385 INPUT/OUTPUT CONFIGURATION Table 23 provides a summary of registers that provide input/output configuration and control. Table 23. Input/Output Registers Register Name Address Description AUX_DAC 0x30 Output voltage control, AUX_DAC GPIO_CTRL 0x32 General-purpose I/O control MSC_CTRL 0x34 Self-test, calibration, data-ready ...

Page 15

... When used with the default sample rate of 1024 SPS and zero decimation (SMPL_PRD[12:8] = 00000), this value reduces the sensor bandwidth to approximately 20 Hz. LOW-PASS MEMS FILTER SENSOR 330Hz GYROSCOPES LOW-PASS, TWO-POLE (404Hz, 757Hz) ACCELEROMETERS LOW-PASS, SINGLE-POLE (330Hz) 0 –20 –40 –60 –80 –100 –120 –140 ...

Page 16

ADIS16385 CALIBRATION The mechanical structure and assembly process of the ADIS16385 provide excellent position and alignment stability for each sensor, even after subjected to temperature cycles, shock, vibration, and other environmental conditions. The factory calibration includes a dynamic characterization of ...

Page 17

ALARMS The ADIS16385 provides two independent alarms, Alarm 1 and Alarm 2, which have a number of programmable settings. Table 33 provides a list of registers for these user settings. Table 33. Registers for Alarm Configuration Register Address Description ALM_MAG1 ...

Page 18

... Part Number 3625/12 (ribbon cable). Figure 20 provides the top-level view of the interface board. Install the ADIS16385BMLZ onto this board using the silk pattern as an orientation guide. Align the pins on the ADIS16385BMLZ to the mating connector on the interface PCB with care. Misalign- ment or wrong orientation can cause permanent damage ...

Page 19

... THRU HOLE (4×) BOTTOM VIEW FRONT VIEW 3.10 2.80 2.50 0.30 SQ BSC (24×) ORDERING GUIDE Model 1 Temperature Range ADIS16385BMLZ −40°C to +105°C ADIS16385/PCBZ RoHS Compliant Part. 31.40 31.20 31.00 5.50 17.70 17.50 17.30 44.30 44.00 43.70 47.50 47 ...

Page 20

ADIS16385 NOTES ©2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08562-0-8/10(A) Rev Page ...

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