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Details, datasheet, quote on part number: ADXL377
 
 
Part numberADXL377
CategorySensors => Velocity Sensors => Accelerometers
Description3-Axis High G Analog MEMS Accelerometer
The ADXL377 is an analog, 3-axis, high g MEMS 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
CompanyAnalog Devices
DatasheetDownload ADXL377 datasheet
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Specifications, Features, Applications
FEATURES

3-axis sensing 200 g measurement range Analog output for full impact event visibility Low power: 300 A (typical) Selectable bandwidth to 1600Hz bandwidth (XY) to 1200Hz bandwidth (Z) Single-supply operation: 10,000 g shock survival Small, low profile package 1.45 mm LFCSP

The 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 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 1600 Hz for X and Y axes and a range 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, 1.45 mm, 16-lead, lead frame chip scale package (LFCSP_LQ).

APPLICATIONS

High Impact Detection for: Concussive Forces Possible Head Trauma Industrial Machinery Industrial Tools Warranty Protection Impact Black Boxes

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 2012 Analog Devices, Inc. All rights reserved.

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 Typical Performance Characteristics............................................. 6 Theory of Operation........................................................................ 7 Mechanical Sensor........................................................................ 7

Performance...................................................................................7 Applications Information.................................................................8 Power Supply Decoupling............................................................8 Setting the Bandwidth Using CX, CY, and CZ.............................8 Self Test...........................................................................................8 Design Trade-Offs for Selecting Filter Characteristics: The Noise/BW Trade-Off.....................................................................8 Axes of Acceleration Sensitivity..................................................9 Layout and Design Recommendations................................... 10 Outline Dimensions....................................................................... 11

0.1 F, acceleration 0 g, unless otherwise noted. All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed. Table 1.

Parameter SENSOR INPUT Measurement Range Nonlinearity Package Alignment Error Interaxis Alignment Error Cross-Axis Sensitivity1 SENSITIVITY (RATIOMETRIC)2 Sensitivity at XOUT, YOUT, ZOUT Sensitivity Change Due 0 g BIAS LEVEL (RATIOMETRIC) 0 g Voltage at XOUT, YOUT, ZOUT 0 g Offset vs. Temperature XOUT, YOUT 0 g Offset vs. Temperature ZOUT NOISE PERFORMANCE Noise Density XOUT, YOUT Noise Density ZOUT FREQUENCY RESPONSE4 Bandwidth XOUT, YOUT5 Bandwidth ZOUT5 RFILT Tolerance Sensor Resonant Frequency SELF TEST6 Logic Input Low Logic Input High ST Actuation Current Output Change at XOUT Output Change at YOUT Output Change at ZOUT OUTPUT AMPLIFIER Output Swing Low Output Swing High POWER SUPPLY Operating Voltage Range7 Supply Current Turn-On Time8 TEMPERATURE Operating Temperature Range Test Conditions/Comments Each axis % of full scale Min Typ nF external filter 1 nF external filter V 1nF external filter Max Unit g % Degrees % mV/g %/C V mg/C mg/Hz rms mg/Hz rms Hz k kHz ms C

Self test to 1 Self test to 1 Self test 1 No load No load

Defined as coupling between any two axes. Sensitivity is essentially ratiometric to VS. Defined as the output change from ambient-to-maximum temperature or ambient-to-minimum temperature. 4 Actual frequency response controlled by user-supplied external filter capacitors (CX, CY, CZ). 5 Bandwidth with external capacitors k C). For CX, 0.003 F, bandwidth = 1.6 kHz. For 0.01 F, bandwidth = 500 Hz. For CX, CY, 10 F, bandwidth = 0.5 Hz. 6 Self test response changes cubically with VS. 7 Tested 3.0 V and guaranteed by design only (not tested) to work over the full range from V. 8 Turn-on time is dependent on CX, CY, CZ and is approximately 160 (CX CY or CZ) + 1, where CX, CY, and CZ are in F and the resulting turn-on time is in ms.




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