Small, Low Power, 3-Axis

±200 g Accelerometer

Data Sheet

ADXL377

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

Concussion and head trauma detection

High force event detection

GENERAL DESCRIPTION

The ADXL377 is a small, thin, low power, complete 3-axis

accelerometer with signal conditioned voltage outputs. The

ADXL377 measures acceleration resulting from motion, shock,

or vibration with a typical full-scale range of ±200 g.

The user selects the bandwidth of the accelerometer using

Bandwidths can be selected to suit the application, with a range

of 0.5 Hz to 1300 Hz for the x-axis and y-axis and a range of

0.5 Hz to 1000 Hz for the z-axis.

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

ADXL377

3-AXIS

SENSOR

DEMODULATOR

OUTPUT

AMPLIFIERS

AC

AMPLIFIER

GND

ST

+3V

32kΩ

32kΩ

32kΩ

Figure 1.