Data Sheet
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
Low power: 700 µA at V
S
= 5 V (typical)
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
Precision ±1.7
g,
±5
g,
±18
g
Single-/
Dual-Axis
iMEMS
®
Accelerometer
ADXL103/ADXL203
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
Capacitor C
X
and Capacitor C
Y
at the X
OUT
and Y
OUT
pins.
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.
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
V
S
+5V
V
S
ADXL103
C
DC
SENSOR
R
FILT
32kΩ
COM
ST
X
OUT
C
X
COM
AC
AMP
OUTPUT
AMP
C
DC
ADXL203
AC
AMP
SENSOR
R
FILT
32kΩ
ST
R
FILT
32kΩ
03757-001
DEMOD
DEMOD
OUTPUT
AMP
OUTPUT
AMP
Y
OUT
C
Y
X
OUT
C
X
Figure 1.
Rev. E
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Trademarks and registered trademarks are the property of their respective owners.
ADXL103/ADXL203
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagrams ............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings ............................................................ 4
ESD Caution .................................................................................. 4
Pin Configurations and Function Descriptions ........................... 5
Typical Performance Characteristics ............................................. 6
ADXL103 and ADXL203 .............................................................. 6
AD22293 ........................................................................................ 9
AD22035 and AD22037 ............................................................ 10
All Models ................................................................................... 12
Data Sheet
Theory of Operation ...................................................................... 13
Performance ................................................................................ 13
Applications Information .............................................................. 14
Power Supply Decoupling ......................................................... 14
Setting the Bandwidth Using C
X
and C
Y
................................. 14
Self Test ........................................................................................ 14
Design Trade-Offs for Selecting Filter Characteristics: The
Noise/Bandwidth Trade-Off ..................................................... 14
Using the ADXL103/ADXL203 with Operating Voltages
Other than 5 V ............................................................................ 15
Using the ADXL203 as a Dual-Axis Tilt Sensor ........................ 15
Outline Dimensions ....................................................................... 16
Ordering Guide .......................................................................... 16
Automotive Products ................................................................. 16
REVISION HISTORY
1/14—Rev. D to Rev. E
Changes to Ordering Guide .......................................................... 16
9/11—Rev. C to Rev. D
Added AD22293, AD22035, and AD22037 ............... Throughout
Changes to Application Section and General Description
Section ................................................................................................ 1
Changes to Table 1 ............................................................................ 3
Deleted Figure 13 and Figure 14: Renumbered Sequentially ..... 7
Deleted Figure 17 and Figure 22..................................................... 8
Added Figure 19 to Figure 24; Renumbered Sequentially .......... 9
Added Figure 25 to Figure 34........................................................ 10
Added All Models Section, Figure 35 to Figure 38 .................... 12
Changes to Figure 39 ...................................................................... 13
Changes to Ordering Guide .......................................................... 16
Changes to Automotive Products Section ................................... 16
5/10—Rev. B to Rev. C
Changes to Figure 24 Caption....................................................... 12
Added Automotive Products Section........................................... 12
4/10—Rev. A to Rev. B
Changes to Features Section ............................................................1
Updated Outline Dimensions ....................................................... 12
Changes to Ordering Guide .......................................................... 12
2/06—Rev. 0 to Rev. A
Changes to Features ..........................................................................1
Changes to Table 1.............................................................................3
Changes to Figure 2 ...........................................................................4
Changes to Figure 3 and Figure 4 ....................................................5
Changes to the Performance Section ..............................................9
4/04—Revision 0: Initial Version
Rev. E | Page 2 of 16
Data Sheet
SPECIFICATIONS
ADXL103/ADXL203
T
A
= −40°C to +125°C, V
S
= 5 V, C
X
= C
Y
= 0.1 μF, acceleration = 0
g,
unless otherwise noted. All minimum and maximum specifications
are guaranteed. All typical specifications are not guaranteed.
Table 1.
Parameter
SENSOR
Measurement Range
1
Nonlinearity
Package Alignment Error
Alignment Error (ADXL203)
Cross-Axis Sensitivity
SENSITIVITY (RATIOMETRIC)
2
Sensitivity at X
OUT
, Y
OUT
Sensitivity Change Due to
Temperature
3
ZERO
g
BIAS LEVEL (RATIOMETRIC)
0
g
Voltage at X
OUT
, Y
OUT
Initial 0
g
Output Deviation
From Ideal
0
g
Offset vs. Temperature
NOISE
Output Noise
Noise Density
FREQUENCY RESPONSE
4
C
X
, C
Y
Range
5
R
FILT
Tolerance
Sensor Resonant Frequency
SELF TEST
6
Logic Input Low
Logic Input High
ST Input Resistance to GND
Output Change at X
OUT
, Y
OUT
OUTPUT AMPLIFIER
Output Swing Low
Output Swing High
POWER SUPPLY (V
DD
)
Operating Voltage Range
Quiescent Supply Current
Turn-On Time
7
1
2
Test Conditions
Each axis
% of full scale
X to Y sensor
Each axis
V
S
= 5 V
V
S
= 5 V
Each axis
V
S
= 5 V
V
S
= 5 V, 25°C
ADXL103/ADXL203
Min
Typ
Max
±1.7
±0.2
±1
±0.1
±1.5
960
1000
±0.3
±1.25
AD22293
Min
Typ Max
±5
±6
±0.2
±1
±0.1
±1.5
312
±0.3
AD22035/AD22037
Min
Typ
Max
±18
Unit
g
%
Degrees
Degrees
%
mV/g
%
±1.25
±3
1040
293
±3
331
94
±0.2
±1
±0.1
±1.5
100
±0.3
±1.25
±3
106
2.4
2.5
±25
±0.1
2.6
2.4
2.5
±50
±0.3
1
200
2.6
2.4
2.5
±125
±1
2.6
V
mg
mg/°C
±0.8
3
±1.8
3
<4 kHz, V
S
= 5 V
1
110
2
130
mV rms
μg/√Hz
rms
μF
kΩ
kHz
V
V
kΩ
mV
V
V
V
mA
ms
0.002
24
32
5.5
10
40
0.002
24
32
5.5
10
40
0.002
24
32
5.5
10
40
1
4
30
450
0.05
50
750
0.2
4.5
4
30
125
0.05
4.8
6
1.1
3
0.7
20
50
250
0.2
4.5
1
4
30
60
0.05
4.8
6
1.1
3
0.7
20
50
80
0.2
4.5
1
ST 0 to ST 1
No load
No load
1100
375
100
4.8
6
1.1
3
0.7
20
Guaranteed by measurement of initial offset and sensitivity.
Sensitivity is essentially ratiometric to V
S
. For V
S
= 4.75 V to 5.25 V, sensitivity is 186 mV/V/g to 215 mV/V/g.
3
Defined as the output change from ambient-to-maximum temperature or ambient-to-minimum temperature.
4
Actual frequency response controlled by user-supplied external capacitor (C
X
, C
Y
).
5
Bandwidth = 1/(2 × π × 32 kΩ × C). For C
X
, C
Y
= 0.002 μF, bandwidth = 2500 Hz. For C
X
, C
Y
= 10 μF, bandwidth = 0.5 Hz. Minimum/maximum values are not tested.
6
Self-test response changes cubically with V
S
.
7
Larger values of C
X
, C
Y
increase turn-on time. Turn-on time is approximately 160 × C
X
or C
Y
+ 4 ms, where C
X
, C
Y
are in μF.
Rev. E | Page 3 of 16
ADXL103/ADXL203
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Acceleration (Any Axis, Unpowered)
Acceleration (Any Axis, Powered)
Drop Test (Concrete Surface)
V
S
All Other Pins
Output Short-Circuit Duration
(Any Pin to Common)
Temperature Range (Powered)
Temperature Range (Storage)
Rating
3500
g
3500
g
1.2 m
−0.3 V to +7.0 V
(COM − 0.3 V) to
(V
S
+ 0.3 V)
Indefinite
−55°C to +125°C
−65°C to +150°C
Data Sheet
Table 3. Package Characteristics
Package Type
8-Terminal Ceramic LCC
θ
JA
120°C/W
θ
JC
20°C/W
Device Weight
<1.0 gram
ESD CAUTION
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress rating
only; functional operation of the device at these or any other
conditions above those indicated in the operational section of
this specification is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
CRITICAL ZONE
T
L
TO T
P
T
P
RAMP-UP
TEMPERATURE
t
P
T
L
T
SMAX
T
SMIN
t
L
t
S
PREHEAT
RAMP-DOWN
03757-102
t
25°C TO PEAK
TIME
Figure 2. Recommended Soldering Profile
Table 4. Solder Profile Parameters
Test Condition
Profile Feature
Average Ramp Rate (T
L
to T
P
)
Preheat
Minimum Temperature (T
SMIN
)
Maximum Temperature (T
SMAX
)
Time (T
SMIN
to T
SMAX
) (t
S
)
T
SMAX
to T
L
Ramp-Up Rate
Time Maintained above Liquidous (T
L
)
Liquidous Temperature (T
L
)
Time (t
L
)
Peak Temperature (T
P
)
Time Within 5°C of Actual Peak Temperature (t
P
)
Ramp-Down Rate
Time 25°C to Peak Temperature
Sn63/Pb37
3°C/second maximum
100°C
150°C
60 seconds to 120 seconds
3°C/second
183°C
60 seconds to 150 seconds
240°C + 0°C/−5°C
10 seconds to 30 seconds
6°C/second maximum
6 minutes maximum
Pb-Free
3°C/second maximum
150°C
200°C
60 seconds to 150 seconds
3°C/second
217°C
60 seconds to 150 seconds
260°C + 0°C/−5°C
20 seconds to 40 seconds
6°C/second maximum
8 minutes maximum
Rev. E | Page 4 of 16
Data Sheet
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
ADXL103
TOP VIEW
(Not to Scale)
V
S
8
ADXL103/ADXL203
ADXL203
TOP VIEW
(Not to Scale)
V
S
8
7
ST
1
NC
2
COM
3
4
X
OUT
NC
03757-002
ST
1
NC
2
COM
3
+X
4
7
X
OUT
Y
OUT
03757-003
+X
6
5
+Y
6
5
NC
NC
NC
NC
NOTES
1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
NOTES
1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
Figure 3.
ADXL103
Pin Configuration
Figure 4.
ADXL203
Pin Configuration
Table 5.
ADXL103
Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
Mnemonic
ST
NC
COM
NC
NC
NC
X
OUT
V
S
Description
Self Test
Do Not Connect
Common
Do Not Connect
Do Not Connect
Do Not Connect
X Channel Output
3 V to 6 V
Table 6.
ADXL203
Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
Mnemonic
ST
NC
COM
NC
NC
Y
OUT
X
OUT
V
S
Description
Self Test
Do Not Connect
Common
Do Not Connect
Do Not Connect
Y Channel Output
X Channel Output
3 V to 6 V
Rev. E | Page 5 of 16
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