AD22284-A-R2 datasheet, PDF - EEWORLD Datasheet

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AD22284-A-R2: DescriptionAccelerometers IC Dual Axis High-g; CategoryAnalog mixed-signal IC The signal circuit; File Size175KB，13 Pages; ManufacturerADI; Websitehttps://www.analog.com; Environmental Compliance

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Accelerometers IC Dual Axis High-g

AD22284-A-R2 Parametric

Parameter Name	Attribute value
Brand Name	Analog Devices Inc
Is it lead-free?	Contains lead
Is it Rohs certified?	conform to
Maker	ADI
Parts packaging code	LCC
package instruction	LCC-8
Contacts	8
Manufacturer packaging code	E-8-1
Reach Compliance Code	not_compliant
ECCN code	EAR99
Is Samacsys	N
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT
JESD-30 code	S-CQCC-N8
length	5 mm
Number of functions	2
Number of terminals	8
Maximum operating temperature	105 °C
Minimum operating temperature	-40 °C
Package body material	CERAMIC, METAL-SEALED COFIRED
encapsulated code	QCCN
Encapsulate equivalent code	LCC8,.2SQ
Package shape	SQUARE
Package form	CHIP CARRIER
Peak Reflow Temperature (Celsius)	260
power supply	5 V
Certification status	Not Qualified
Maximum seat height	2.2 mm
Maximum supply voltage (Vsup)	5.25 V
Minimum supply voltage (Vsup)	4.75 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal surface	Tungsten/Nickel/Gold (W/Ni/Au)
Terminal form	NO LEAD
Terminal pitch	1.27 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	40
width	5 mm
Base Number Matches	1

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Dual-Axis, High-g,

iMEMS

Accelerometers

ADXL278

FEATURES

Complete dual-axis acceleration measurement system on a

single monolithic IC

Available in ±35

g/±35 g,

±50

g/±50 g,

or ±70

g/±35 g

output

full-scale ranges

Full differential sensor and circuitry for high resistance to

EMI/RFI

Environmentally robust packaging

Complete mechanical and electrical self-test on digital

command

Output ratiometric to supply

Sensitive axes in the plane of the chip

High linearity (0.2% of full scale)

Frequency response down to dc

Low noise

Low power consumption

Tight sensitivity tolerance and 0

offset capability

Largest available prefilter clipping headroom

400 Hz, 2-pole Bessel filter

Single-supply operation

Compatible with Sn/Pb and Pb-free solder processes

Qualified for automotive applications

GENERAL DESCRIPTION

The ADXL278 is a low power, complete, dual-axis

accelerometer with signal conditioned voltage outputs that are

on a single monolithic IC. This product measures acceleration

with a full-scale range of (X-axis/Y-axis) ±35

g/±35 g,

±50

or ±70

g/±35 g

(minimum). The ADXL278 can also

measure both dynamic acceleration (vibration) and static

acceleration (gravity).

The ADXL278 is the fourth-generation surface micromachined

iMEMS®

accelerometer from ADI with enhanced performance

and lower cost. Designed for use in front and side impact airbag

applications, this product also provides a complete cost-

effective solution useful for a wide variety of other applications.

The ADXL278 is temperature stable and accurate over the

automotive temperature range, with a self-test feature that fully

exercises all the mechanical and electrical elements of the sensor

with a digital signal applied to a single pin.

The ADXL278 is available in a 5 mm × 5 mm × 2 mm,

8-terminal ceramic LCC package.

APPLICATIONS

Vibration monitoring and control

Vehicle collision sensing

Shock detection

FUNCTIONAL BLOCK DIAGRAM

ADXL278

EXC

DD2

DD3

DIFFERENTIAL

SENSOR

DEMOD

AMP

400Hz

BESSEL

FILTER

OUT

TIMING

GENERATOR

EXC

DIFFERENTIAL

SENSOR

DEMOD

AMP

400Hz

BESSEL

FILTER

OUT

SELF-TEST

Figure 1.

Rev. B

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.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

www.analog.com

Tel: 781.329.4700

Fax: 781.461.3113

05365-001

ADXL278

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications ....................................................................................... 1

General Description ......................................................................... 1

Functional Block Diagram .............................................................. 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Absolute Maximum Ratings ............................................................ 4

ESD Caution .................................................................................. 4

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

Theory of Operation .........................................................................7

Applications........................................................................................8

Power Supply Decoupling ............................................................8

Self-Test ..........................................................................................8

Clock Frequency Supply Response .............................................8

Signal Distortion ...........................................................................8

Outline Dimensions ..........................................................................9

ADXL278 Ordering Guide ...........................................................9

Automotive Products ....................................................................9

REVISION HISTORY

8/10—Rev. A to Rev. B

Updated Format .................................................................. Universal

Change to Features Section ............................................................. 1

Updated Outline Dimensions ......................................................... 9

Changes to Ordering Guide ............................................................ 9

Added Automotive Products Section............................................. 9

7/02—Rev. D to Rev. E

Edits to Features ................................................................................ 1

5/05—Rev. 0 to Rev. A

Rev. B | Page 2 of 12

AD22284-A-R2 Related Products

	AD22284-A-R2	AD22285-R2	AD22285	AD22286
Description	Accelerometers IC Dual Axis High-g	Accelerometers IC Dual Axis High-g	Accelerometers IC Dual Axis High-g	Accelerometers IC Dual Axis High-g
Brand Name	Analog Devices Inc	Analog Devices Inc	Analog Devices Inc	Analog Devices Inc
Is it lead-free?	Contains lead	Contains lead	Contains lead	Contains lead
Is it Rohs certified?	conform to	conform to	conform to	conform to
Maker	ADI	ADI	ADI	ADI
Parts packaging code	LCC	LCC	LCC	LCC
package instruction	LCC-8	LCC-8	LCC-8	LCC-8
Contacts	8	8	8	8
Manufacturer packaging code	E-8-1	E-8-1	E-8-1	E-8-1
Reach Compliance Code	not_compliant	not_compliant	not_compliant	not_compliant
ECCN code	EAR99	EAR99	EAR99	EAR99
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT	ANALOG CIRCUIT	ANALOG CIRCUIT	ANALOG CIRCUIT
JESD-30 code	S-CQCC-N8	S-CQCC-N8	S-CQCC-N8	S-CQCC-N8
length	5 mm	5 mm	5 mm	5 mm
Number of functions	2	2	2	2
Number of terminals	8	8	8	8
Maximum operating temperature	105 °C	105 °C	105 °C	105 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C
Package body material	CERAMIC, METAL-SEALED COFIRED	CERAMIC, METAL-SEALED COFIRED	CERAMIC, METAL-SEALED COFIRED	CERAMIC, METAL-SEALED COFIRED
encapsulated code	QCCN	QCCN	QCCN	QCCN
Encapsulate equivalent code	LCC8,.2SQ	LCC8,.2SQ	LCC8,.2SQ	LCC8,.2SQ
Package shape	SQUARE	SQUARE	SQUARE	SQUARE
Package form	CHIP CARRIER	CHIP CARRIER	CHIP CARRIER	CHIP CARRIER
Peak Reflow Temperature (Celsius)	260	260	260	NOT SPECIFIED
power supply	5 V	5 V	5 V	5 V
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	2.2 mm	2.2 mm	2.2 mm	2.2 mm
Maximum supply voltage (Vsup)	5.25 V	5.25 V	5.25 V	5.25 V
Minimum supply voltage (Vsup)	4.75 V	4.75 V	4.75 V	4.75 V
Nominal supply voltage (Vsup)	5 V	5 V	5 V	5 V
surface mount	YES	YES	YES	YES
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal surface	Tungsten/Nickel/Gold (W/Ni/Au)	Gold (Au)	Gold (Au) - with Nickel (Ni) barrier	Gold (Au)
Terminal form	NO LEAD	NO LEAD	NO LEAD	NO LEAD
Terminal pitch	1.27 mm	1.27 mm	1.27 mm	1.27 mm
Terminal location	QUAD	QUAD	QUAD	QUAD
Maximum time at peak reflow temperature	40	40	40	NOT SPECIFIED
width	5 mm	5 mm	5 mm	5 mm
JESD-609 code	-	e4	e4	e4

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