Precision ±1.7 g, ±5 g, ±18 g Single-/

Data Sheet

ADXL103/ADXL203

Rev. E

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FEATURES

High performance, single-/dual-axis accelerometer on

a single IC chip

5 mm × 5 mm × 2 mm LCC package

1 mg resolution at 60 Hz

High zero g bias stability

High sensitivity accuracy

−40°C to +125°C temperature range

X and Y axes aligned to within 0.1° (typical)

Bandwidth adjustment with a single capacitor

Single-supply operation

3500 g shock survival

RoHS compliant

Compatible with Sn/Pb- and Pb-free solder processes

Qualified for automotive applications

APPLICATIONS

Vehicle dynamic controls

Electronic chassis controls

Platform stabilization/leveling

Navigation

Alarms and motion detectors

High accuracy, 2-axis tilt sensing

Vibration monitoring and compensation

Abuse event detection

GENERAL DESCRIPTION

The ADXL103/ADXL203 are high precision, low power, complete

single- and dual-axis accelerometers with signal conditioned

voltage outputs, all on a single, monolithic IC. The ADXL103/

ADXL203 measure acceleration with a full-scale range of ±1.7 g,

±5 g, or ±18 g. The ADXL103/ADXL203 can measure both

dynamic acceleration (for example, vibration) and static

acceleration (for example, gravity).

The typical noise floor is 110 µg/√Hz, allowing signals below 1 mg

(0.06° of inclination) to be resolved in tilt sensing applications

using narrow bandwidths (<60 Hz).

The user selects the bandwidth of the accelerometer using

Bandwidths of 0.5 Hz to 2.5 kHz can be selected to suit the

application.

The ADXL103 and ADXL203 are available in a 5 mm × 5 mm ×

2 mm, 8-terminal ceramic LCC package.

FUNCTIONAL BLOCK DIAGRAMS

ADXL103

SENSOR

+5V

OUTPUT

AMP

COM

ST

32kΩ

DEMOD

AC

AMP

ADXL203

SENSOR

+5V

OUTPUT

AMP

OUTPUT

AMP

COM

ST

32kΩ

DEMOD

32kΩ

AC

AMP

Figure 1.