ADIS16003 Analog Devices, Inc., ADIS16003 Datasheet

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ADIS16003

Manufacturer Part Number
ADIS16003
Description
Dual-axis ?1.7 G Accelerometer With Spi Interface
Manufacturer
Analog Devices, Inc.
Datasheet

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FEATURES
Dual-axis accelerometer
SPI digital output interface
Internal temperature sensor
Highly integrated; minimal external components
Bandwidth externally selectable
1 mg resolution at 60 Hz
Externally controlled electrostatic self-test
3.0 V to 5.25 V single-supply operation
Low power: <2 mA
3500 g shock survival
7.2 mm × 7.2 mm × 3.7 mm package
APPLICATIONS
Industrial vibration/motion sensing
Platform stabilization
Dual-axis tilt sensing
Tracking, recording, and analysis devices
Alarms and security devices
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.
C
DC
COM
ACCELEROMETER
DUAL-AXIS
±1.7g
ST
FUNCTIONAL BLOCK DIAGRAM
V
CC
YFILT
C
Y
Figure 1.
XFILT
C
Dual-Axis ±1.7 g Accelerometer
X
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 ADIS16003 is a low cost, low power, complete dual-axis
accelerometer with an integrated serial peripheral interface
(SPI). An integrated temperature sensor is also available on the
SPI interface. The ADIS16003 measures acceleration with a full-
scale range of ±1.7 g (minimum), and it can measure both dynamic
acceleration (vibration) and static acceleration (gravity).
The typical noise floor is 110 μg/√Hz, allowing signals below
1 mg (60 Hz bandwidth) to be resolved.
The bandwidth of the accelerometer is set with optional capaci-
tors C
two analog input channels is controlled via the serial interface.
An externally driven self-test pin (ST) allows the user to verify
the accelerometer functionality.
The ADIS16003 is available in a 7.2 mm × 7.2 mm × 3.7 mm,
12-terminal LGA package.
INTERFACE
SERIAL
X
SENSOR
TEMP
and C
Y
at the XFILT and YFILT pins. Selection of the
©2005-2007 Analog Devices, Inc. All rights reserved.
with SPI Interface
SCLK
DIN
DOUT
CS
TCS
ADIS16003
www.analog.com

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ADIS16003 Summary of contents

Page 1

... The bandwidth of the accelerometer is set with optional capaci- tors C two analog input channels is controlled via the serial interface. An externally driven self-test pin (ST) allows the user to verify the accelerometer functionality. The ADIS16003 is available in a 7.2 mm × 7.2 mm × 3.7 mm, 12-terminal LGA package. FUNCTIONAL BLOCK DIAGRAM V CC ...

Page 2

... ADIS16003 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Specifications .................................................................. 4 Circuit and Timing Diagrams..................................................... 5 Absolute Maximum Ratings............................................................ 6 ESD Caution.................................................................................. 6 Pin Configuration and Function Descriptions............................. 7 Typical Performance Characteristics ............................................. 8 Theory of Operation ...................................................................... 11 Self-Test........................................................................................ 11 REVISION HISTORY 10/07—Rev Rev. A Changes to Features and General Description ............................. 1 Added Note 6 to Table 2 ...

Page 3

... V − 0.5 CC 0.4 3.0 5.25 1.5 2.0 1 ms, where are in μ ADIS16003 Unit g % Degrees Degrees % LSB/g LSB LSB LSB/°C μg/√Hz rms μF kΩ kHz kΩ LSB °C Bits μs μ μ ...

Page 4

... ADIS16003 TIMING SPECIFICATIONS T = −40°C to +125°C, acceleration = 0 g, unless otherwise noted. A Table 2. Parameter 3 SCLK 2 t 14.5 × t CONVERT SCLK t 1.5 × t ACQ SCLK 100 0.4 × SCLK t 0.4 × SCLK ...

Page 5

... DB11 DB10 ZERO ZERO ADD0 ONE Figure 3. Accelerometer Serial Interface Timing Diagram DB0 DB9 DB8 Figure 4. Temperature Serial Interface Timing Diagram Rev Page ADIS16003 1. DB9 DB0 ZERO PM0 THREE-STATE THREE-STATE ...

Page 6

... ADIS16003 ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Rating Acceleration (Any Axis, Unpowered) 3500 g Acceleration (Any Axis, Powered) 3500 g V −0 +7 All Other Pins (COM − 0 Output Short-Circuit Duration (Any Pin to Common) Indefinite Operating Temperature Range −40°C to +125°C Storage Temperature Range − ...

Page 7

... Data Out, Logic Output. The conversion of the ADIS16003 is provided on this output as a serial data stream. The bits are clocked out on the falling edge of the SCLK input. 3 DIN Data In, Logic Input. Data to be written into the control register of the ADIS16003 is provided on this input and is clocked into the register on the rising edge of SCLK. 4 COM Common ...

Page 8

... ADIS16003 TYPICAL PERFORMANCE CHARACTERISTICS 890 870 850 830 810 790 770 –40 – TEMPERATURE (°C) Figure 7. Sensitivity vs. Temperature (ADIS16003 Soldered to PCB) 2200 2150 2100 2050 2000 1950 1900 –40 – TEMPERATURE (°C) Figure 8. Zero g Bias vs. Temperature 2200 ...

Page 9

... Figure 18. Self-Test vs. Temperature, V Rev Page ADIS16003 400 450 500 550 600 650 700 750 800 850 OUTPUT (LSB) Figure 16. Self-Test at 25° 5 195 210 225 240 255 ...

Page 10

... ADIS16003 800 700 600 500 400 300 200 100 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 V (V) CC Figure 19. Self-Test vs. Supply Voltage 1.8 1.7 1 +125°C A 1.5 1.4 1 –40°C A 1.2 1.1 1.0 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 V (V) CC Figure 20. Supply Current vs. Supply Voltage 5.4 1.0 0.8 0.6 0 +25°C A 0.2 –0.2 –0.4 –0.6 –0.8 –1.0 5.4 Rev Page 3. ...

Page 11

... V is recommended. CC SERIAL INTERFACE The serial interface on the ADIS16003 consists of five wire TCS , SCLK, DIN, and DOUT. Both accelerometer axes and the temperature sensor data are available on the serial interface. The CS and TCS are used to select the accelerometer or temperature sensor outputs, respectively. CS and TCS cannot be active at the same time ...

Page 12

... ADIS16003 output. If additional decoupling is needed, ferrite beads can be inserted in the supply line of the ADIS16003. Additionally, a larger bulk bypass capacitor (in the 1 μ μF range) can be added in parallel to C Rev ...

Page 13

... Filtering can be used to lower the noise floor, which improves the resolution of the accelerometer. Resolution is dependent on the analog filter bandwidth at XFILT and YFILT. + 2200 pF)) The ADIS16003 has a typical bandwidth of 2.25 kHz with no external filtering. The analog bandwidth can be further decreased to reduce noise and improve resolution. ) can vary typically ...

Page 14

... ADIS16003 9 8 DIGITAL OUTPUT (IN LSBs) X-AXIS: 2048 Y-AXIS: 2867 DIGITAL OUTPUT (IN LSBs) X-AXIS: 1229 Y-AXIS: 2048 Top View Not to Scale DIGITAL OUTPUT (IN LSBs) X-AXIS: 2867 Y-AXIS: 2048 Figure 23. Output Response vs. Orientation Rev Page ...

Page 15

... APPLICATIONS DUAL-AXIS TILT SENSOR One of the most popular applications of the ADIS16003 is tilt measurement. An accelerometer uses the force of gravity as an input vector to determine the orientation of an object in space. An accelerometer is most sensitive to tilt when its sensitive axis is perpendicular to the force of gravity, that is, parallel to the earth’ ...

Page 16

... TOP VIEW 5.00 TYP SIDE VIEW ORDERING GUIDE Model Temperature Range 1 ADIS16003CCCZ −40°C to +125°C 1 ADIS16003/PCBZ RoHS Compliant Part. ©2005-2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 1.797 BSC (8× .373 BSC 7 ...

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