ANALOG DEVICES ADXRS652 Service Manual

V

±250°/sec Yaw Rate Gyro

FEATURES FEATURES

Complete rate gyroscope on a single chip Complete rate gyroscope on a single chip
Z-axis (yaw rate) response Z-axis (yaw rate) response
High vibration rejection over wide frequency High vibration rejection over wide frequency
2000 g powered shock survivability 2000 g powered shock survivability
Ratiometric to referenced supply Ratiometric to referenced supply
5 V single-supply operation 5 V single-supply operation

−40°C to +105°C operation −40°C to +105°C operation
Self-test on digital command Self-test on digital command
Ultrasmall and light (<0.15 cc, <0.5 gram) Ultrasmall and light (<0.15 cc, <0.5 gram)
Temperature sensor output Temperature sensor output
RoHS compliant RoHS compliant

APPLICATIONS APPLICATIONS

Industrial applications Industrial applications
Inertial measurement units Inertial measurement units
Platform stabilization Platform stabilization

GENERAL DESCRIPTION GENERAL DESCRIPTION

The ADXRS652 is a complete angular rate sensor (gyroscope)

The ADXRS652 is a complete angular rate sensor (gyroscope)
that uses the Analog Devices, Inc., surface-micromachining

that uses the Analog Devices, Inc., surface-micromachining
process to make a functionally complete and low cost angular rate

process to make a functionally complete and low cost angular rate
sensor integrated with all of the required electronics on one chip.

sensor integrated with all of the required electronics on one chip.
The manufacturing technique for this device is a patented high

The manufacturing technique for this device is a patented high
volume BiMOS process with years of proven field reliability.

volume BiMOS process with years of proven field reliability.

The ADXRS652 is an industrial grade gyroscope that is 100% pin,

The ADXRS652 is an industrial grade gyroscope that is 100% pin,
package, temperature, and function compatible to the related

package, temperature, and function compatible to the related
automotive grade

automotive grade ADXRS620 and ADXRS622 gyroscopes.
Automotive grade gyroscopes have more guaranteed

Automotive grade gyroscopes have more guaranteed
minimum/maximum specifications due to automotive testing.

minimum/maximum specifications due to automotive testing.

The output signal, RATEOUT (1B, 2A), is a voltage propor-

The output signal, RATEOUT (1B, 2A), is a voltage propor­tional to angular rate about the axis normal to the top surface

tional to angular rate about the axis normal to the top surface
of the package. The output is ratiometric with respect to a

of the package. The output is ratiometric with respect to a
provided reference supply. An external capacitor is used to set

provided reference supply. An external capacitor is used to set
the bandwidth. Other external capacitors are required for

the bandwidth. Other external capacitors are required for
operation.

operation.

A temperature output is provided for compensation techniques.

A temperature output is provided for compensation techniques.
Two digital self-test inputs electromechanically excite the sensor

Two digital self-test inputs electromechanically excite the sensor
to test proper operation of both the sensor and the signal condi-

to test proper operation of both the sensor and the signal condi­tioning circuits. The ADXRS652 is available in a 7 mm × 7 mm ×

tioning circuits. The ADXRS652 is available in a 7 mm × 7 mm ×
3 mm BGA chip-scale package.

3 mm BGA chip-scale package.

FUNCTIONAL BLOCK DIAGRAM FUNCTIONAL BLOCK DIAGRAM

5

(ADC REF)

ADXRS652

ADXRS620 and ADXRS622 gyroscopes.

100nF

5V

AV

CC

100nF

AGND

5V

V

DD

100nF

Rev. A

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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.

PGND

ST2 ST1 TEMP V

SELF-TEST

AMP

22nF

MECHANICAL

SENSOR

CHARGE PUMP
AND VOLTAGE

REGULATOR

22nF

DRIVE

CP1 CP2 CP3 CP4 CP5 SUMJ RATEOUT

RATIO

25kΩ

25kΩ

@ 25°C

AC

AMP

100nF

C

OUT

Figure 1.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] www.analog.com
Fax: [phone] ©2010 Analog Devices, Inc. All rights reserved.

VGA

180kΩ ±1%

ADXRS652

DEMOD

08820-001

ADXRS652

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

Pin Configuration and Function Descriptions ............................. 5

Typical Performance Characteristics ............................................. 6

REVISION HISTORY

7/10—Rev. 0 to Rev. A

Changed −40°C to +85°C to −40°C to +105°C ......... Throughout

Changes to General Description Section ...................................... 1

Added Note 3 and Note 4, Table 1 .................................................. 3

Added Modifying the ADXRS652 Scale to Match the

ADXRS620 Section ........................................................................... 9

Changes to Ordering Guide .......................................................... 11

4/10—Revision 0: Initial Version

Theory of Operation .........................................................................9

Setting Bandwidth .........................................................................9

Temperature Output and Calibration .........................................9

Modifying the ADXRS652 Scale to Match the ADXRS620 .....9

Calibrated Performance ................................................................9

ADXRS652 and Supply Ratiometricity ................................... 10

Null Adjustment ......................................................................... 10

Self-Test Function ...................................................................... 10

Continuous Self-Test .................................................................. 10

Outline Dimensions ....................................................................... 11

Ordering Guide .......................................................................... 11

Rev. A | Page 2 of 12

ADXRS652

SPECIFICATIONS

All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed.

T

= −40°C to +105°C, VS = AVCC = VDD = 5 V, V

A

±1 g, unless otherwise noted.

Table 1.

Parameter Conditions Min Typ Max Unit

SENSITIVITY1 Clockwise rotation is positive output

Measurement Range2 Full-scale range over specifications range ±2503 ±300 °/sec
Initial and Over Temperature

−40°C to +105°C 7.04 mV/°/sec
Temperature Drift5 ±2 %
Nonlinearity Best fit straight line 0.1 % of FS

NULL1

Null −40°C to +105°C 2.5 V
Linear Acceleration Effect Any axis 0.1 °/sec/g

NOISE PERFORMANCE

Rate Noise Density TA ≤ 25°C 0.06 °/sec/√Hz

FREQUENCY RESPONSE

Bandwidth

6

0.01 2500 Hz
Sensor Resonant Frequency 14.5 kHz

SELF-TEST1

ST1 RATEOUT Response

ST1 pin from Logic 0 to Logic 1 −525 mV
ST2 RATEOUT Response ST2 pin from Logic 0 to Logic 1 525 mV
ST1 to ST2 Mismatch7 −5
Logic 1 Input Voltage 3.3 V
Logic 0 Input Voltage 1.7 V
Input Impedance To common 40 50 100 kΩ

TEMPERATURE SENSOR1

V

at 25°C Load = 10 MΩ 2.5 V

OUT

Scale Factor8 25°C, V
Load to V

S

25 kΩ
Load to Common 25 kΩ

TURN-ON TIME Power on to ±½°/sec of final 50 ms
OUTPUT DRIVE CAPABILITY

Current Drive For rated specifications 200 μA
Capacitive Load Drive 1000 pF

POWER SUPPLY

Operating Voltage (VS) 4.75 5.00 5.25 V
Quiescent Supply Current 3.5 4.5 mA

TEMPERATURE RANGE

Specified Performance −40 +105 °C

1

Parameter is linearly ratiometric with V

2

Measurement range is the maximum range possible, including output swing range, initial offset, sensitivity, offset drift, and sensitivity drift at 5 V supplies.

3

See the section to configure the sensitivity to match the Theory of Operation

4

See the section to configure the sensitivity to match the ADXRS620 6 mV/°/sec scale.

Theory of Operation

5

From +25°C to −40°C or +25°C to +105°C.

6

Adjusted by external capacitor, C

7

Self-test mismatch is described as (ST2 + ST1)/((ST2 − ST1)/2).

8

Scale factor for a change in temperature from 25°C to 26°C. V

.

RATIO

. Reducing bandwidth below 0.01 Hz does not result in further noise improvement.

OUT

= AVCC, angular rate = 0°/sec, bandwidth = 80 Hz (C

RATIO

= 5 V 9 mV/°C

RATIO

ADXRS620 ±300°/sec minimum range.

is ratiometric to V

TEMP

. See the section for more information. Temperature Output and Calibration

RATIO

= 0.01 µF), I

OUT

+5

OUT

= 100 µA,

%

Rev. A | Page 3 of 12

ADXRS652

ABSOLUTE MAXIMUM RATINGS

Table 2.

Parameter Rating

Acceleration (Any Axis, 0.5 ms)

Unpowered 2000 g
Powered 2000 g

VDD, AV

CC

V

AVCC

RATIO

−0.3 V to +6.0 V

ST1, ST2 AVCC
Output Short-Circuit Duration

Indefinite

(Any Pin to Common)
Operating Temperature Range −55°C to +125°C
Storage Temperature Range −65°C to +150°C

Stresses above those listed under the Absolute Maximum
Ratings may cause permanent damage to the device. This is a
stress rating only; functional operation of the device at these or
any other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.

Drops onto hard surfaces can cause shocks of greater than
2000 g and can exceed the absolute maximum rating of the
device. Care should be exercised in handling to avoid damage.

RATE SENSITIVE AXIS

This is a Z-axis rate-sensing device (also called a yaw rate­sensing device). It produces a positive going output voltage
for clockwise rotation about the axis normal to the package
top, that is, clockwise when looking down at the package lid.

RATE

AXIS

LONGITUDINAL

AXIS

EF

ABCD G

A1

LATERAL AXI S

Figure 2. RATEOUT Signal Increases with Clockwise Rotation

VCC = 5V

+

7

1

GND

V

RATIO

RATE OUT

4.75V

/2

RATE IN

0.25V

ESD CAUTION

08820-002

Rev. A | Page 4 of 12