ADXRS401ABG-REEL Analog Devices Inc, ADXRS401ABG-REEL Datasheet

IC GYROSCOPE SGL COND 32CSPBGA

ADXRS401ABG-REEL

Manufacturer Part Number
ADXRS401ABG-REEL
Description
IC GYROSCOPE SGL COND 32CSPBGA
Manufacturer
Analog Devices Inc
Datasheet

Specifications of ADXRS401ABG-REEL

Range °/s
±75°/s
Sensitivity
15mV/°/s
Typical Bandwidth
40Hz
Voltage - Supply
4.75 V ~ 5.25 V
Current - Supply
6mA
Output Type
Ratiometric
Operating Temperature
-40°C ~ 85°C
Package / Case
32-CSPBGA
For Use With
ADXRS401EB - EVAL BOARD FOR ADXRS401ABG
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
FEATURES
Complete rate gyroscope on a single chip
Z-axis (yaw-rate) response
High vibration rejection over wide frequency
2000 g powered shock survivability
Self-test on digital command
Temperature sensor output
Precision voltage reference output
Absolute rate output for precision applications
5 V single-supply operation
Ultra small and light (< 0.15 cc, < 0.5 gram)
APPLICATIONS
GPS navigation systems
Image stabilization
Inertial measurement units
Platform stabilization
Rev. 0
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.
ST2
ST1
ADXRS401
5G
4G
SELF
TEST
AVCC
CP2
4A
22nF
3A
+
SENSOR
5A
RATE
100nF
5V
CP1
PDD
CHARGE PUMP/REG.
2G
7E
FUNCTIONAL BLOCK DIAGRAM
PGND
100nF
RESONATOR LOOP
6G
CORIOLIS SIGNAL CHANNEL
1F
7F
AGND
π
Figure 1.
100nF
DEMOD
6A
12V
CP4
GENERAL DESCRIPTION
The ADXRS401 is a functionally complete and low cost angular
rate sensor (gyroscope), integrated with all of the required
electronics on one chip. It is manufactured using Analog
Devices’ surface-micromachining technique, the same high
volume BIMOS process used for high reliability automotive
airbag accelerometers. It is available in a 7 mm × 7 mm × 3 mm
BGA surface-mount package.
The output signal, RATEOUT (1B, 2A), is a voltage proportional
to angular rate about the axis normal to the top surface of the
package (see Figure 2). A single external resistor can be used to
lower the scale factor. An external capacitor is used to set the
bandwidth. Other external capacitors are required for operation
(see Figure 1).
A precision reference and a temperature output are also
provided for compensation techniques. Two digital self-test
inputs electromechanically excite the sensor to test proper
operation of both sensors and the signal conditioning circuits.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
9kΩ
7B
R
CMID
SEN
22nF
Gyro with Signal Conditioning
±
CP3
±75°/s Single Chip Yaw Rate
35%
1
2.5V REF
7C
1D
9kΩ
S
CP5
SEN
PTAT
±
7D
2
35%
1C
1µF
SUMJ
© 2004 Analog Devices, Inc. All rights reserved.
180kΩ 1%
R
OUT
C
OUT
1B
2A
1E
3G
RATEOUT
2.5V
TEMP
ADXRS401
www.analog.com

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ADXRS401ABG-REEL Summary of contents

Page 1

FEATURES Complete rate gyroscope on a single chip Z-axis (yaw-rate) response High vibration rejection over wide frequency 2000 g powered shock survivability Self-test on digital command Temperature sensor output Precision voltage reference output Absolute rate output for precision applications 5 ...

Page 2

ADXRS401 TABLE OF CONTENTS Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 4 Rate-Sensitive Axis ....................................................................... 4 Pin Configuration and Function Descriptions............................. 5 Typical Performance Characteristics ............................................. 6 Theory of Operation ........................................................................ 8 Supply and Common Considerations ....................................... 8 Setting Bandwidth ........................................................................ 9 ...

Page 3

SPECIFICATIONS @T = 25° bandwidth = Table 1. Parameter SENSITIVITY 1 Dynamic Range Scale Factor Nonlinearity NULL Initial Null Turn-On Time Linear Acceleration Effect NOISE PERFORMANCE Rate Noise FREQUENCY RESPONSE 2 ...

Page 4

ADXRS401 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Acceleration (Any Axis, Unpowered, 0.5 ms) Acceleration (Any Axis, Powered, 0.5 ms Output Short-Circuit Duration (Any Pin to Common) Operating Temperature Range Storage Temperature ESD CAUTION ESD (electrostatic discharge) sensitive device. ...

Page 5

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic 6D, 7D CP5 6A, 7B CP4 6C, 7C CP3 5A, 5B CP1 4A, 4B CP2 3A, 3B AVCC 1B, 2A RATEOUT 1C, 2C SUMJ 1D, 2D CMID ...

Page 6

ADXRS401 TYPICAL PERFORMANCE CHARACTERISTICS @ Hz, Typical Vibration Characteristics Flat Band kHz 1.5 1.7 1.9 2.1 2.3 2.5 2.7 OUTPUT IN VOLTS Figure 4. ...

Page 7

RATE AXIS (1/60 SEC SAMPLE RATE) 2.50 2.49 2.48 2.47 2.46 2. TIME (Seconds) Figure 10 Random Vibration in Rate Axis Orientation PACKAGE LATERAL AXIS (0.5s AVERAGE) 2.50 2.49 0g 2.48 10g 2.47 2.46 2.45 0 ...

Page 8

ADXRS401 THEORY OF OPERATION 5V Note that inner rows/columns of pins have been omitted for clarity but should be connected in the application. The ADXRS401 operates on the principle of a resonator gyro. Two polysilicon sensing structures each contain a ...

Page 9

SETTING BANDWIDTH External capacitors CMID and C are used in combination OUT with on-chip resistors to create two low-pass filters to limit the bandwidth of the ADXRS401’s rate response. The –3 dB frequency set by R and C is: OUT ...

Page 10

ADXRS401 USE WITH A SUPPLY-RATIOMETRIC ADC The ADXRS401’s RATEOUT signal is nonratiometric (that is, neither the null voltage nor the rate sensitivity is proportional to the supply). Rather, they are nominally constant for dc supply changes within the 4.75 V ...

Page 11

TIME (Seconds) Figure 17. Random Vibration (Lateral 3.2 g rms 2.60 2.58 2.56 2.54 2.52 2. TIME (Seconds) Figure 18. Random ...

Page 12

... MAX ORDERING GUIDE Model Temperature Range ADXRS401ABG −40°C to +85°C ADXRS401ABG-REEL −40°C to +85°C ADXRS401EB © 2004 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C04992–0–7/04(0) 7.00 BSC SQ ...

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