Datasheet ADXL337 (Analog Devices)

Small, Low Power, 3-Axis ±3 g Accelerometer ADXL337
FEATURES GENERAL DESCRIPTION 3-axis sensing
The ADXL337 is a small, thin, low power, complete 3-axis
Small, low profile package
accelerometer with signal conditioned voltage outputs. The
3 mm × 3 mm × 1.45 mm LFCSP
product measures acceleration with a minimum full-scale range
Low power: 300 μA (typical)
of ±3 g. It can measure the static acceleration of gravity in tilt-
Single-supply operation: 1.8 V to 3.6 V
sensing applications, as well as dynamic acceleration resulting
10,000 g shock survival
from motion, shock, or vibration.
Excellent temperature stability
The user selects the bandwidth of the accelerometer using the
Bandwidth adjustment with a single capacitor per axis
CX, CY, and CZ capacitors at the XOUT, YOUT, and ZOUT pins.
RoHS/WEEE and lead-free compliant
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
APPLICATIONS
550 Hz for the Z axis.
Cost-sensitive, low power, motion- and tilt-sensing applications
The ADXL337 is available in a small, low profile, 3 mm × 3 mm ×
Mobile devices
1.45 mm, 16-lead, lead frame chip scale package (LFCSP_LQ).
Gaming systems Disk drive protection Image stabilization Sports and health devices FUNCTIONAL BLOCK DIAGRAM +3V VS ADXL337 OUTPUT ~32kΩ XOUT AC AMPLIFIERS AMPLIFIER CX C ~32kΩ Y DC OUT DEMODULATOR 3-AXIS CY SENSOR ~32kΩ ZOUT CZ GND ST
01 0 8- 35 09 Figure 1.
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Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION MECHANICAL SENSOR PERFORMANCE APPLICATIONS INFORMATION POWER SUPPLY DECOUPLING SETTING THE BANDWIDTH USING CX, CY, AND CZ SELF TEST DESIGN TRADE-OFFS FOR SELECTING FILTER CHARACTERISTICS: THE NOISE/BW TRADE-OFF USE WITH OPERATING VOLTAGES OTHER THAN 3 V AXES OF ACCELERATION SENSITIVITY LAYOUT AND DESIGN RECOMMENDATIONS OUTLINE DIMENSIONS ORDERING GUIDE