ADXL377 Datasheet, PDF (1/13 Pages) Analog Devices – 3-Axis ±200 g Analog MEMS

Preliminary Technical Data
FEATURES
3-axis sensing
±200 g measurement range
Analog output for full impact event visibility
Low power: 300 μA (typical)
Selectable bandwidth
Up to 1600Hz bandwidth (XY)
Up to 1200Hz bandwidth (Z)
Single-supply operation: 1.8 V to 3.6 V
10,000 g shock survival
Small, low profile package
3 mm × 3 mm × 1.45 mm LFCSP
APPLICATIONS
High Impact Detection for:
Concussive Forces
Possible Head Trauma
Industrial Machinery
Industrial Tools
Warranty Protection
Impact Black Boxes
3-Axis ±200 g Analog MEMS
Accelerometer
ADXL377
GENERAL DESCRIPTION
The ADXL377 is a small, thin, low power, complete 3-axis
accelerometer with signal conditioned voltage outputs. The
product measures acceleration with a minimum full-scale range
of ±200 g. The ADXL377 is designed to measure dynamic
acceleration resulting from high impact events without sensor
saturation. The analog output of the ADXL377 provides for full
visibility of an impact event so potentially critical data is not
lost.
The user selects the bandwidth of the accelerometer using the
CX, CY, and CZ capacitors at the XOUT, YOUT, and ZOUT pins.
Bandwidths can be selected to suit the application, with a range
of 0.5 Hz to 1600 Hz for X and Y axes and a range of 0.5 Hz to
1200 Hz for the Z axis. This wide bandwidth allows the
ADXL377 to detect shock and impact events on industrial
applications that have a higher frequency component.
The ADXL377 is available in a small, low profile, 3 mm × 3 mm
× 1.45 mm, 16-lead, lead frame chip scale package
(LFCSP_LQ).
FUNCTIONAL BLOCK DIAGRAM
+3V
V_S
ADXL337
ADXL377
AC
AMPLIFIER
OUTPUT ^~32kΩ
AMPLIFIERS
X_OUT
C_X
C_DC
3-AXIS
SENSOR
GND
ST
DEMODULATOR
~32kΩ
Y_OUT
C_Y
~32kΩ
Z_OUT
C_Z
Figure 1.
Rev. PrB
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: [phone]
www.analog.com
Fax: [phone]
©2012 Analog Devices, Inc. All rights reserved.