ANALOG DEVICES ADIS16006 Service Manual

Dual-Axis ±5 g Accelerometer

www.BDTIC.com/ADI

FEATURES

Dual-axis accelerometer
SPI digital output interface
Internal temperature sensor
Highly integrated; minimal external components
Bandwidth externally selectable

1.9 mg resoluti
Externally controlled electrostatic self-test

3.0 V to 5.25 V single-supply operation
Low power: <2 mA
3500 g shock s

7.2 mm × 7.2 mm × 3.7 mm package

APPLICATIONS

Industrial vibration/motion sensing
Platform stabilization
Dual-axis tilt sensing
Tracking, recording, analysis devices
Alarms and security devices

on at 60 Hz

urvival

with SPI Interface

ADIS16006

GENERAL DESCRIPTION

The ADIS16006 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 ADIS16006 measures acceleration with a full­scale range of ±5 g (minimum). The ADIS16006 can measure both
dynamic acceleration (vibration) and static acceleration (gravity).

The typical noise floor is 200 μg/

1.9 mg (60 Hz bandwidth) to be resolved.
The bandwidth of the accelerometer is set with optional

ca

pacitors, C

and CY, at the XFILT pin and the YFILT pin.

X

Digital output data for both axes is available via the serial interface.
An externally driven self-test pin (ST) allows the user to verify

th

e accelerometer functionality.

The ADIS16006 is available in a 7.2 mm × 7.2 mm × 3.7 mm,
12-t

erminal LGA package.

√Hz, allowing signals below

FUNCTIONAL BLOCK DIAGRAM

V

CC

ADIS16006

DUAL-AXIS

±5g

ACCELEROMETER

C

DC

COM ST

YFILT

C

XFILT

Y

Figure 1.

C

X

SERIAL

INTERFACE

TEMP

SENSOR

SCLK
DIN
DOUT
CS
TCS

05975-001

Rev. A

Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Anal og Devices for its use, nor for any infringements of patents or ot her
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.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] www.analog.com
Fax: [phone] ©2007 Analog Devices, Inc. All rights reserved.

ADIS16006

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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

REVISION HISTORY

10/07—Rev. 0 to Rev. A

Changes to Features and General Description .............................1

Added Note 6 to Table 2 .................................................................. 4

Changes to Figure 5.......................................................................... 6

Changes to Accelerometer Control Register Section................. 11

Changes to Layout.......................................................................... 13

Changes to Layout.......................................................................... 14

Deleted Figure 24 and Table 11..................................................... 14

Edited Second-Level Assembly Section....................................... 15

Updated Outline Dimensions....................................................... 16

Changes to Ordering Guide.......................................................... 16

3/06—Revision 0: Initial Version

Self-Test .......................................................................................11

Serial Interface............................................................................ 11

Accelerometer Serial Interface.................................................. 11

Temperature Sensor Serial Interface........................................ 12

Power Supply Decoupling .........................................................12

Setting the Bandwidth ...............................................................13

Selecting Filter Characteristics:

The Noise/Bandwidth Trade-Off .............................................. 13

Applications..................................................................................... 15

Second Level Assembly ............................................................. 15

Outline Dimensions .......................................................................16

Ordering Guide .......................................................................... 16

Rev. A | Page 2 of 16

ADIS16006

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SPECIFICATIONS

TA = −40°C to +125°C, VCC = 5 V, CX = CY = 0 μF, acceleration = 0 g, unless otherwise noted. All minimum and maximum specifications
are guaranteed. Typical specifications are not guaranteed.

Table 1.

Parameter Conditions Min Typ Max Unit

ACCELEROMETER SENSOR INPUT Each axis

Measurement Range
Nonlinearity % of full scale ±0.5 ±2.5 %
Package Alignment Error ±1.5 Degrees
Alignment Error X sensor to Y sensor ±0.1 Degrees
Cross-Axis Sensitivity ±1.5 ±3 %

ACCELEROMETER SENSITIVITY Each axis

Sensitivity at XFILT, YFILT 242 256 272 LSB/g
Sensitivity Change due to Temperature

ZERO g BIAS LEVEL Each axis

0 g Voltage at XFILT, YFILT 1905 2048 2190 LSB
0 g Offset vs. Temperature ±0.1 LSB/°C

ACCELEROMETER NOISE PERFORMANCE

Noise Density At 25°C 200 μg/√Hz rms

ACCELEROMETER FREQUENCY RESPONSE

CX, CY Range 0 10 μF
R

Tolerance 24 32 40 kΩ

FILT

Sensor Bandwidth CX = 0 μF, CY = 0 μF 2.26 kHz
Sensor Resonant Frequency 5.5 kHz

ACCELEROMETER SELF-TEST

Logic Input Low 0.2 × VCCV
Logic Input High 0.8 × V
ST Input Resistance to COM 30 50 kΩ
Output Change at X

TEMPERATURE SENSOR

Accuracy VCC = 3 V to 5.25 V ±2 °C
Resolution 10 Bits
Update Rate 400 μs
Temperature Conversion Time 25 μs

DIGITAL INPUT

Input High Voltage (V
V
Input Low Voltage (V
Input Current VIN = 0 V or V
Input Capacitance 10 pF

DIGITAL OUTPUT

Output High Voltage (VOH) I
Output Low Voltage (VOL) I

1

2

3, 4

5

, Y

T

OUT

OUT

) VCC = 4.75 V to 5.25 V 2.4 V

INH

) VCC = 3.0 V to 5.25 V 0.8 V

INL

±5

Delta from 25°C ±0.3 %

V

CC

Self-Test 0 to Self-Test 1 102 205 307 LSB

= 3.0 V to 3.6 V 2.1 V

CC

CC

= 200 μA, VCC = 3.0 V to 5.25 V VCC − 0.5 V

SOURCE

= 200 μA 0.4 V

SINK

−10 +1 +10 μA

Rev. A | Page 3 of 16

g

ADIS16006

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Parameter Conditions Min Typ Max Unit

POWER SUPPLY

Operating Voltage Range 3.0 5.25 V

Quiescent Supply Current f

Power-Down Current 1.0 mA

Turn-On Time

1

Guaranteed by measurement of initial offset and sensitivity.

2

Defined as the output change from ambient-to-maximum temperature or ambient-to-minimum temperature.

3

Actual bandwidth response controlled by user-supplied external capacitor (CX, CY).

4

See the Setting the Bandwidth section for more information on how to reduce the bandwidth.

5

Self-test response changes as the square of VCC.

6

Larger values of CX and CY increase turn-on time. Turn-on time is approximately (160 × (0.0022 + CX or CY) + 4) in milliseconds, where CX and CY are in μF.

6

TIMING SPECIFICATIONS

TA = −40°C to +125°C, acceleration = 0 g, unless otherwise noted.

= 50 kSPS 1.5 1.9 mA

SCLK

CX, CY = 0.1 μF 20 ms

Table 2.

Parameter

f

SCLK

1, 2

3

VCC = 3.3 V VCC = 5 V Unit Description

10 10 kHz min
2 2 MHz max
t

CONVER T

t

ACQ

t

1

4

t

2

4

t

3

t

4

t

5

t

6

t

7

5

t

8

6

t

9

1

Guaranteed by design. All input signals are specified with tR and tF = 5 ns (10% to 90% of VCC) and timed from a voltage level of 1.6 V. The 3.3 V operating range spans

from 3.0 V to 3.6 V. The 5 V operating range spans from 4.75 V to 5.25 V.

2

See Figure 3 and Figure 4.

3

Mark/space ratio for the SCLK input is 40/60 to 60/40.

4

Measured with the load circuit in Figure 2 and defined as the time required for the output to cross 0.4 V or 2.0 V with VCC = 3.3 V and time for an output to cross 0.8 V or

2.4 V with V

5

t8 is derived from the measured time taken by the data outputs to change 0.5 V when loaded with the circuit in Figure 2. The measured number is then extrapolated

back to remove the effects of charging or discharging the 50 pF capacitor. This means that the time, t8, quoted in the Timing Specifications is the true bus relinquish
time of the part and is independent of the bus loading.

6

Shut-down recovery time denotes the time it takes to start producing samples and does not account for the recovery time of the sensor, which is dependent on the

overall bandwidth.

= 5.0 V.

CC

14.5 × t

SCLK

1.5 × t

SCLK

10 10 ns min

60 30 ns max

14.5 × t

1.5 × t

SCLK

SCLK

Throughput time = t

/CS to SCLK setup time

TCS
Delay from TCS

+ t

CONVER T

= 16 × t

ACQ

/CS until DOUT three-state disabled
100 75 ns max Data access time after SCLK falling edge
20 20 ns min Data setup time prior to SCLK rising edge
20 20 ns min Data hold time after SCLK rising edge

0.4 × t

SCLK

0.4 × t

SCLK

80 80 ns max

0.4 × t

0.4 × t

SCLK

SCLK

ns min SCLK high pulse width
ns min SCLK low pulse width

/CS rising edge to DOUT high impedance

TCS

5 5 μs typ Power-up time from shutdown

SCLK

Rev. A | Page 4 of 16

ADIS16006

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CIRCUIT AND TIMING DIAGRAMS

200µA I

TO OUTPUT

PIN

C

L

50pF

200µA I

Figure 2. Load Circuit for Digital Out

OL

1.6V

OH

05975-002

put Timing Specifications

t

ACQ

CS

t

1

SCLK

THREE-STATE THREE-STATE

DOUT

DIN

1

t

2

t

4

t

5

DON’T

CARE

t

6

234

t

7

4 LEADING Z E ROS

ZERO ZERO ZERO ADD0 ONE ZERO PM0

56 15

Figure 3. Accelerometer Serial Interface Timing Diagram

t

3

DB11

t

CONVERT

DB10

16

DB9 DB0

t

8

5975-003

TCS

t

1

SCLK

THREE­STATE THREE-STATE

DOUT

1

LEADING

ZERO

t

6

234

t

3

t

7

DB9 DB8

11 15

DB0

16

t

8

DIN

5975-004

Figure 4. Temperature Serial Interface Timing Diagram

Rev. A | Page 5 of 16