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ADXL322 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 ADXL322은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 ADXL322 자료 제공

부품번호 ADXL322 기능
기능 Small and Thin +-2 g Accelerometer
제조업체 Analog Devices
로고 Analog Devices 로고


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ADXL322 데이터시트, 핀배열, 회로
www.DataSheet4U.com
Small and Thin ±2 g Accelerometer
ADXL322
FEATURES
Small and thin
4 mm × 4 mm × 1.45 mm LFCSP package
2 mg resolution at 60 Hz
Wide supply voltage range: 2.4 V to 6 V
Low power: 340 μA at VS = 2.4 V (typ)
Good zero g bias stability
Good sensitivity accuracy
X-axis and Y-axis aligned to within 0.1° (typ)
BW adjustment with a single capacitor
Single-supply operation
10,000 g shock survival
Pb Free: Compatible with Sn/Pb and Pb-free solder processes
APPLICATIONS
Cost-sensitive motion- and tilt-sensing applications
Smart hand-held devices
Mobile phones
Sports and health-related devices
PC security and PC peripherals
GENERAL DESCRIPTION
The ADXL322 is a small, thin, low power, complete, dual-axis
accelerometer with signal conditioned voltage outputs, which
are all on a single monolithic IC. The product measures accel-
eration with a full-scale range of ±2 g (typical). It can also
measure both dynamic acceleration (vibration) and static
acceleration (gravity).
The ADXL322’s typical noise floor is 220 μg/√Hz, which allows
signals below 2 mg to be resolved in tilt-sensing applications
using narrow bandwidths (<60 Hz).
The user selects the bandwidth of the accelerometer using
capacitors CX and CY at the XOUT and YOUT pins. Bandwidths
of 0.5 Hz to 2.5 kHz can be selected to suit the application.
The ADXL322 is available in a 4 mm × 4 mm × 1.45 mm,
16-lead, plastic LFCSP.
FUNCTIONAL BLOCK DIAGRAM
+3V
VS
ADXL322
CDC
SENSOR
COM
AC
AMP
DEMOD
OUTPUT
AMP
OUTPUT
AMP
RFILT
32kΩ
RFILT
32kΩ
ST
YOUT
XOUT
CY CX
Figure 1.
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 © 2005 Analog Devices, Inc. All rights reserved.




ADXL322 pdf, 반도체, 판매, 대치품
ADXL322
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Rating
Acceleration (Any Axis, Unpowered)
Acceleration (Any Axis, Powered)
10,000 g
10,000 g
VS
All Other Pins
Output Short-Circuit Duration
(Any Pin to Common)
−0.3 V to +7.0 V
(COM − 0.3 V) to
(VS + 0.3 V)
Indefinite
Operating Temperature Range
−55°C to +125°C
Storage Temperature
−65°C to +150°C
Stresses above those listed under 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.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate
on the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Rev. 0 | Page 4 of 16

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ADXL322 전자부품, 판매, 대치품
ADXL322
TYPICAL PERFORMANCE CHARACTERISTICS (VS = 3.0 V)
35 40
30 35
30
25
25
20
20
15
15
10
10
55
0
1.40 1.42 1.44 1.46 1.48 1.50 1.52 1.54 1.56 1.58 1.60
OUTPUT (V)
Figure 5. X-Axis Zero g Bias at 25°C
0
1.40 1.42 1.44 1.46 1.48 1.50 1.52 1.54 1.56 1.58 1.60
OUTPUT (V)
Figure 8. Y-Axis Zero g Bias at 25°C
40
35
30
25
20
15
10
5
0
–2.0
–1.5 –1.0 –0.5 0
0.5 1.0 1.5
TEMPERATURE COEFFICIENT (mg/°C)
2.0
Figure 6. X-Axis Zero g Bias Temperature Coefficient
45
40
35
30
25
20
15
10
5
0
–2.0
–1.5 –1.0 –0.5 0
0.5 1.0 1.5
TEMPERATURE COEFFICIENT (mg/°C)
2.0
Figure 9. Y-Axis Zero g Bias Temperature Coefficient
50
45
40
35
30
25
20
15
10
5
0
0.400 0.405 0.410 0.415 0.420 0.425 0.430 0.435 0.440 0.445 0.450
SENSITIVITY (V/g)
Figure 7. X-Axis Sensitivity at 25°C
45
40
35
30
25
20
15
10
5
0
0.400 0.405 0.410 0.415 0.420 0.425 0.430 0.435 0.440 0.445 0.450
SENSITIVITY (V/g)
Figure 10. Y-Axis Sensitivity at 25°C
Rev. 0 | Page 7 of 16

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