ADXL320
器件资料摘要：
Small and Thin ±5 g Accelerometer
ADXL320
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: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.
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 5.25 V
Low power: 350 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
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 ADXL320 is a low cost, low power, complete dual-axis
accelerometer with signal conditioned voltage outputs, which is
all on a single monolithic IC. The product measures
acceleration with a full-scale range of ±5 g (typical). It can also
measure both dynamic acceleration (vibration) and static
acceleration (gravity).
The ADXL320’s typical noise floor is 250 µg/√Hz, allowing
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 may be selected to suit the application.
The ADXL320 is available in a very thin 4 mm × 4 mm ×
1.45 mm, 16-lead, plastic LFCSP.
FUNCTIONAL BLOCK DIAGRAM
04993-001
ADXL320
SENSOR
+3V
OUTPUT
AMP
OUTPUT
AMP
COM ST
V
S
C
DC
DEMOD
AC
AMP
R
FILT
32kΩ
X
OUT
C
X
Y
OUT
C
Y
R
FILT
32kΩ
Figure 1.
ADXL320
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: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.
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 5.25 V
Low power: 350 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
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 ADXL320 is a low cost, low power, complete dual-axis
accelerometer with signal conditioned voltage outputs, which is
all on a single monolithic IC. The product measures
acceleration with a full-scale range of ±5 g (typical). It can also
measure both dynamic acceleration (vibration) and static
acceleration (gravity).
The ADXL320’s typical noise floor is 250 µg/√Hz, allowing
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 may be selected to suit the application.
The ADXL320 is available in a very thin 4 mm × 4 mm ×
1.45 mm, 16-lead, plastic LFCSP.
FUNCTIONAL BLOCK DIAGRAM
04993-001
ADXL320
SENSOR
+3V
OUTPUT
AMP
OUTPUT
AMP
COM ST
V
S
C
DC
DEMOD
AC
AMP
R
FILT
32kΩ
X
OUT
C
X
Y
OUT
C
Y
R
FILT
32kΩ
Figure 1.