EVAL-ADXRS649Z Analog Devices Inc, EVAL-ADXRS649Z Datasheet

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EVAL-ADXRS649Z

Manufacturer Part Number
EVAL-ADXRS649Z
Description
?20,000?/sec Yaw Rate Gyroscope
Manufacturer
Analog Devices Inc
Datasheet

Specifications of EVAL-ADXRS649Z

Rohs Compliant
YES
Silicon Manufacturer
Analog Devices
Kit Application Type
Sensor
Application Sub Type
Gyro & Pressure Sensors
Features
High Vibration Rejection Over Wide Frequency, 5V Single Supply Operation
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
EVAL-ADXRS649Z
Manufacturer:
RENESAS
Quantity:
1 001
FEATURES
High vibration rejection over wide frequency
Ultrafast startup: 3 ms
Measurement range extendable to ±50,000°/sec
10,000 g powered shock survivability
Ratiometric to referenced supply
5 V single-supply operation
Z-axis (yaw rate) response
−40°C to +105°C operation
Self-test on digital command
Ultrasmall and light (<0.15 cc, <0.5 gram)
Temperature sensor output
RoHS compliant
APPLICATIONS
Sports equipment
Industrial applications
Platform stabilization
High speed tachometry
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.
100nF
100nF
5V
5V
AV
AGND
V
PGND
DD
CC
CP1 CP2 CP3 CP4 CP5
DRIVE
FUNCTIONAL BLOCK DIAGRAM
AMP
22nF
CHARGE PUMP
AND VOLTAGE
REGULATOR
ST2
MECHANICAL
SELF-TEST
SENSOR
ST1
22nF
Figure 1.
AT 25°C
2.2nF
SUMJ
25k Ω
TEMP
AMP
AC
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 ADXRS649 is a complete angular rate sensor (gyroscope)
that uses the Analog Devices, Inc., patented high volume BiMOS
surface-micromachining process to make a complete gyro on
one chip. An advanced, differential, quad sensor design rejects
the influence of linear acceleration, enabling the ADXRS649
to offer rate sensing in harsh environments where shock and
vibration are present.
The output signal, RATEOUT (B1, A2), is a voltage proportional
to the angular rate about the axis normal to the top surface of
the package. The output is ratiometric with respect to a provided
reference supply. An external capacitor is used to set the band-
width. The measurement range is extendable to ±50,000°/sec
by adding an external resistor.
Low power consumption (3.5 mA) enables very low power
consumption, and ultrafast startup (3 ms) allows for quick
power cycling of the gyro. At 10 samples per second, a pair of
CR2032 coin cells can power the ADXRS649 for three months.
A temperature output is provided for compensation techniques.
Two digital self-test inputs electromechanically excite the sensor
to test proper operation of both the sensor and the signal condi-
tioning circuits. The ADXRS649 is available in a 7 mm × 7 mm ×
3 mm CBGA chip scale package.
Vibration Rejecting Rate Gyro
C
Fast Starting, ±20,000°/sec
OUT
25kΩ
V
RATIO
(ADC REF)
180kΩ ±1%
RATEOUT
5V
R
VGA
OUT
100nF
ADXRS649
DEMOD
©2010–2011 Analog Devices, Inc. All rights reserved.
ADXRS649
www.analog.com

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EVAL-ADXRS649Z Summary of contents

Page 1

FEATURES High vibration rejection over wide frequency Ultrafast startup Measurement range extendable to ±50,000°/sec 10,000 g powered shock survivability Ratiometric to referenced supply 5 V single-supply operation Z-axis (yaw rate) response −40°C to +105°C operation Self-test on digital ...

Page 2

ADXRS649 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 4 Rate Sensitive Axis ....................................................................... 4 ESD Caution .................................................................................. 4 ...

Page 3

SPECIFICATIONS All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed −40°C to +105° unless otherwise noted. Table 1. Parameter SENSITIVITY 1 2 Measurement Range Initial and ...

Page 4

ADXRS649 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Acceleration (Any Axis, 0.5 ms) Unpowered Powered RATIO ST1, ST2 Output Short-Circuit Duration (Any Pin to Common) Operating Temperature Range Storage Temperature Range Stresses above those listed ...

Page 5

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic D6, D7 CP5 A6, B7 CP4 C6, C7 CP3 A5, B5 CP1 A4, B4 CP2 A3 B1, A2 RATEOUT C1, C2 SUMJ D1, D2 ...

Page 6

ADXRS649 TYPICAL PERFORMANCE CHARACTERISTICS N > 1000 for all histograms, unless otherwise noted. 0 –3 –6 –9 –12 –15 –18 0.1 1 FREQUENCY (kHz) Figure 4. Typical Rate and Phase Response vs. Frequency (C = 470 pF with a Series ...

Page 7

DEGREES PER SECOND (°) Figure 10. ST2 Output Change at 25°C (V RATIO –5 –4 –3 ...

Page 8

ADXRS649 10 1 0.1 0.01 0.001 100 1000 VIBRATION INPUT FREQUENCY (Hz) Figure 16. Typical Response RMS Sinusoidal Vibration (Sensor Bandwidth = 1 kHz) 0.5 0.4 0.3 0.2 0.1 0 –0.1 –0.2 –0.3 –0.4 –0.5 0 5000 ...

Page 9

THEORY OF OPERATION The ADXRS649 operates on the principle of a resonator gyro. Figure 18 shows a simplified version of one of four polysilicon sensing structures. Each sensing structure contains a dither frame that is electrostatically driven to resonance. This ...

Page 10

ADXRS649 TEMPERATURE OUTPUT AND CALIBRATION It is common practice to temperature-calibrate gyros to improve their overall accuracy. The ADXRS649 has a temperature propor- tional voltage output that provides input to such a calibration method. The temperature sensor structure is shown ...

Page 11

... OUTLINE DIMENSIONS A1 BALL CORNER 3.80 MAX ORDERING GUIDE 1 Model Temperature Range ADXRS649BBGZ-RL –40°C to +105°C ADXRS649BBGZ –40°C to +105°C EVAL-ADXRS649Z RoHS Compliant Part. 7.05 6. 4.80 BSC SQ 0.80 BSC TOP VIEW BOTTOM VIEW DETAIL A DETAIL A 0.60 MAX 0.25 MIN ...

Page 12

ADXRS649 NOTES ©2010–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D09573-0-3/11(A) Rev Page ...

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