Small, Low Power, 3-Axis ±3 g

Accelerometer

ADXL337

Rev. 0

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FEATURES

3-axis sensing

Small, low profile package

3 mm × 3 mm × 1.45 mm LFCSP

Low power: 300 μA (typical)

Single-supply operation: 1.8 V to 3.6 V

10,000 g shock survival

Excellent temperature stability

Bandwidth adjustment with a single capacitor per axis

RoHS/WEEE and lead-free compliant

APPLICATIONS

Cost-sensitive, low power, motion- and tilt-sensing applications

Mobile devices

Gaming systems

Disk drive protection

Image stabilization

Sports and health devices

GENERAL DESCRIPTION

The ADXL337 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 ±3 g. It can measure the static acceleration of gravity in tilt-

sensing applications, as well as dynamic acceleration resulting

from motion, shock, or vibration.

The user selects the bandwidth of the accelerometer using the

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

550 Hz for the Z axis.

The ADXL337 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

ADXL337

3-AXIS

SENSOR

DEMODULATOR

OUTPUT

AMPLIFIERS

AC

AMPLIFIER

GND

ST

+3V

~32kΩ

~32kΩ

~32kΩ

Figure 1.