AD22280-R2 Analog Devices Inc, AD22280-R2 Datasheet

IC ACCELER 50G SNGL-AXIS 8CLCC

AD22280-R2

Manufacturer Part Number
AD22280-R2
Description
IC ACCELER 50G SNGL-AXIS 8CLCC
Manufacturer
Analog Devices Inc
Series
iMEMS®r
Datasheet

Specifications of AD22280-R2

Acceleration Range
±50g
Axis
X or Y
Sensitivity
38mV/g
Voltage - Supply
5V
Output Type
Analog
Bandwidth
400Hz
Mounting Type
Surface Mount
Package / Case
8-CLCC
No. Of Axes
1
Sensor Case Style
LCC
No. Of Pins
8
Supply Voltage Range
4.75V To 5.25V
Operating Temperature Range
-40°C To +105°C
Acceleration Range ±
70gf
Family Name
AD22280
Package Type
CLLCC
Operating Supply Voltage (min)
4.75V
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.25V
Operating Temperature (min)
-40C
Operating Temperature (max)
105C
Operating Temperature Classification
Industrial
Product Depth (mm)
5mm
Product Height (mm)
1.98mm
Product Length (mm)
5mm
Mounting
Surface Mount
Pin Count
8
Package
8CLLCC
Acceleration
±50 g
Axis Type
Single
Device Sensitivity Range
36.1 to 39.9 mV/g
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Interface
-
Lead Free Status / Rohs Status
Compliant
Other names
AD22280-R2TR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD22280-R2
Manufacturer:
ADI/亚德诺
Quantity:
20 000
FEATURES
Complete acceleration measurement system on a single
Available in ±35 g, ±50 g, or ±70 g output full-scale ranges
Full differential sensor and circuitry for high resistance
Environmentally robust packaging
Complete mechanical and electrical self-test on
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 (1.3 mA)
Tight sensitivity tolerance and 0 g 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
APPLICATIONS
Vibration monitoring and control
Vehicle collision sensing
Shock detection
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.
monolithic IC
to EMI/RFI
digital command
V
S
V
V
DD2
DD
EXC
FUNCTIONAL BLOCK DIAGRAM
GENERATOR
TIMING
DIFFERENTIAL
SELF-TEST
SENSOR
Figure 1.
DEMOD
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 ADXL78 is a low power, complete single-axis accelerometer
with signal conditioned voltage outputs that are on a single
monolithic IC. This product measures acceleration with a full-
scale range of ±35 g, ±50 g, or ±70 g (minimum). It can also
measure both dynamic acceleration (vibration) and static
acceleration (gravity).
The ADXL78 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 ADXL78 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 ADXL78 is available in a 5 mm × 5 mm × 2 mm,
8-terminal ceramic LCC package.
AMP
iMEMS
BESSEL
ADXL78
FILTER
400Hz
Single-Axis, High-g,
©2010 Analog Devices, Inc. All rights reserved.
®
X
OUT
Accelerometers
ADXL78
www.analog.com

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AD22280-R2 Summary of contents

Page 1

... TIMING GENERATOR DIFFERENTIAL DEMOD EXC SENSOR AMP SELF-TEST Figure 1. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 Single-Axis, High-g, ® Accelerometers iMEMS ADXL78 ADXL78 400Hz BESSEL X OUT FILTER www.analog.com ©2010 Analog Devices, Inc. All rights reserved. ...

Page 2

ADXL78 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 4 ESD Caution .................................................................................. 4 Pin Configuration and Function Descriptions ............................. 5 Theory of ...

Page 3

... DD Functional Range Quiescent Supply Current TEMPERATURE RANGE 1 All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed. 2 Zero g output is ratiometric. 3 Self-test output (Self-Test Output × Model No. AD22279 Model No. AD22280 Min Typ Max Min −5 +5 −5 24 52.25 55 57.75 36.1 − ...

Page 4

ADXL78 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Acceleration (Any Axis, Unpowered) Acceleration (Any Axis, Powered All Other Pins Output Short-Circuit Duration (Any Pin to Common) Operating Temperature Range Storage Temperature Stresses above those listed under Absolute Maximum Ratings ...

Page 5

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic COM OUT DD2 V DD2 ...

Page 6

ADXL78 Table 4. Recommended Soldering Profile Profile Feature AVERAGE RAMP RATE ( PREHEAT Minimum Temperature (T ) SMIN Maximum Temperature (T ) SMAX TIME ( SMIN SMAX ...

Page 7

THEORY OF OPERATION The ADXL78 provides a fully differential sensor structure and circuit path, resulting in the industry’s highest resistance to EMI/RFI effects. This latest generation uses electrical feedback with zero-force feedback for improved accuracy and stability. The sensor resonant ...

Page 8

... In any clocked system, power supply noise near the clock frequency may have consequences at other frequencies. An internal clock typically controls the sensor excitation and the signal demodulator for micromachined accelerometers. If the power supply contains high frequency spikes, they may be demodulated and interpreted as an acceleration signal. A signal appears as the difference between the noise frequency and the demodulator frequency ...

Page 9

... ADXL78 ORDERING GUIDE Parts per Measurement Model Reel Range AD22279-A-R2 250 ±35 g AD22279-A 3,000 ±35 g ADW22279ZC 3,000 ±35 g ADW22279ZC-RL7 250 ±35 g AD22280-R2 250 ±50 g AD22280 3,000 ±50 g ADW22280ZC 3,000 ±50 g ADW22280ZC-RL7 250 ±50 g AD22281-R2 250 ±70 g AD22281 3,000 ±70 g ADW22281ZC 3,000 ± ...

Page 10

ADXL78 NOTES Rev Page ...

Page 11

NOTES Rev Page ADXL78 ...

Page 12

ADXL78 NOTES ©2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05368-0-7/10(B) Rev Page ...

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