Precision ± ±1. g, ± ꢀ g, ± ±ꢁ g Single-/
Dual-Axis iMEMS® Accelerometer
Data Sheet
ADXL±03/ADXL203
FEATURES
GENERAL DESCRIPTION
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
Low power: 700 μA at VS = 5 V (typical)
High zero g bias stability
High sensitivity accuracy
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,
±± g, or ±1ꢀ g. The ADXL103/ADXL203 can measure both
dynamic acceleration (for example, vibration) and static
acceleration (for example, gravity).
−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
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
Capacitor CX and Capacitor CY at the XOUT and YOUT pins.
Bandwidths of 0.± Hz to 2.± kHz can be selected to suit the
application.
Compatible with Sn/Pb- and Pb-free solder processes
Qualified for automotive applications
The ADXL103 and ADXL203 are available in a ± mm × ± mm ×
2 mm, ꢀ-terminal ceramic LCC package.
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
FUNCTIONAL BLOCK DIAGRAMS
+5V
+5V
V
S
V
S
ADXL203
ADXL103
C
C
AC
AMP
OUTPUT
AMP
OUTPUT
AMP
AC
AMP
OUTPUT
AMP
DC
DC
DEMOD
DEMOD
SENSOR
COM
SENSOR
COM
R
32kΩ
R
32kΩ
R
FILT
32kΩ
FILT
FILT
ST
X
OUT
ST
Y
X
OUT
OUT
C
C
C
X
X
Y
Figure 1.
Rev. D
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