Datasheet ADXL103, ADXL203 (Analog Devices)

Precision ±1.7 g , ±5 g , ±18 g Single-/ Dual-Axis
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MEMS® Accelerometer Data Sheet ADXL103/ ADXL203 FEATURES GENERAL DESCRIPTION High performance, single-/dual-axis accelerometer on
The ADXL103/ADXL203 are high precision, low power, complete
a single IC chip
single- and dual-axis accelerometers with signal conditioned
5 mm × 5 mm × 2 mm LCC package
voltage outputs, all on a single, monolithic IC. The ADXL103/
1 mg resolution at 60 Hz
ADXL203 measure acceleration with a ful -scale range of ±1.7 g,
Low power: 700 µA at VS = 5 V (typical)
±5 g, or ±18 g. The ADXL103/ADXL203 can measure both
High zero g bias stability
dynamic acceleration (for example, vibration) and static
High sensitivity accuracy
acceleration (for example, gravity).
−40°C to +125°C temperature range
The typical noise floor is 110 µg/√Hz, allowing signals below 1 mg
X and Y axes aligned to within 0.1° (typical)
(0.06° of inclination) to be resolved in tilt sensing applications
Bandwidth adjustment with a single capacitor
using narrow bandwidths (<60 Hz).
Single-supply operation 3500 g shock survival
The user selects the bandwidth of the accelerometer using
RoHS compliant
Capacitor CX and Capacitor CY at the XOUT and YOUT pins.
Compatible with Sn/Pb- and Pb-free solder processes
Bandwidths of 0.5 Hz to 2.5 kHz can be selected to suit the
Qualified for automotive applications
application. The ADXL103 and ADXL203 are available in a 5 mm × 5 mm ×
APPLICATIONS
2 mm, 8-terminal ceramic LCC package.
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 FUNCTIONAL BLOCK DIAGRAMS +5V +5V V V S S ADXL103 ADXL203 C C DC AC OUTPUT DC AC OUTPUT OUTPUT DEMOD DEMOD AMP AMP AMP AMP AMP SENSOR SENSOR RFILT RFILT RFILT 32kΩ 32kΩ 32kΩ COM ST XOUT COM ST YOUT XOUT CX CY CX
001 03757- Figure 1.
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Document Outline Features Applications General Description Functional Block Diagrams Revision History Specifications Absolute Maximum Ratings ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics ADXL103 and ADXL203 AD22293 AD22035 and AD22037 All Models Theory of Operation Performance Applications Information Power Supply Decoupling Setting the Bandwidth Using CX and CY Self Test Design Trade-Offs for Selecting Filter Characteristics: The Noise/Bandwidth Trade-Off Using the ADXL103/ADXL203 with Operating Voltages Other than 5 V Using the ADXL203 as a Dual-Axis Tilt Sensor Dual-Axis Tilt Sensor: Converting Acceleration to Tilt Outline Dimensions Ordering Guide Automotive Products