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Precision 1.7 g
Single/Dual Axis Accelerometer
ADXL103/ADXL203
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703
2004 Analog Devices, Inc. All rights reserved.
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 A at V
S
= 5 V (typical)
High zero g bias stability
High sensitivity accuracy
40C to +125C temperature range
X and Y axes aligned to within 0.1 (typical)
BW adjustment with a single capacitor
Single-supply operation
3500 g shock survival
APPLICATIONS
Vehicle Dynamic Control (VDC)/Electronic Stability Program
(ESP) systems
Electronic chassis control
Electronic braking
Platform stabilization/leveling
Navigation
Alarms and motion detectors.
High accuracy, 2-axis tilt sensing
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 measures acceleration with a full-scale
range of 1.7 g . The ADXL103/ADXL203 can measure both
dynamic acceleration (e.g., vibration) and static acceleration
(e.g., gravity).
The typical noise floor is 110 g/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
capacitors C
X
and C
Y
at the X
OUT
and Y
OUT
pins. Bandwidths of
0.5 Hz to 2.5 kHz may be selected to suit the application.
The ADXL103 and ADXL203 are available in 5 mm 5 mm
2 mm, 8-pad hermetic LCC packages.
FUNCTIONAL BLOCK DIAGRAM
ADXL103
03757-0-001
SENSOR
+5V
OUTPUT
AMP
COM
ST
X
OUT
V
S
C
DC
C
X
R
FILT
32k
DEMOD
AC
AMP
ADXL203
SENSOR
+5V
OUTPUT
AMP
OUTPUT
AMP
COM
ST
Y
OUT
V
S
C
DC
C
Y
R
FILT
32k
DEMOD
X
OUT
C
X
R
FILT
32k
AC
AMP
Figure 1. ADXL103/ADXL203 Functional Block Diagram
ADXL103/ADXL203
Rev. 0 | Page 2 of 12
TABLE OF CONTENTS
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
Typical Performance Characteristics ............................................. 5
Theory of Operation ........................................................................ 8
Performance .................................................................................. 8
Applications....................................................................................... 9
Power Supply Decoupling ........................................................... 9
Setting the Bandwidth Using C
X
and C
Y
.................................... 9
Self Test ...........................................................................................9
Design Trade-Offs for Selecting Filter Characteristics: The
Noise/BW Trade-Off.....................................................................9
Using the ADXL103/ADXL203 with Operating Voltages
Other than 5 V............................................................................ 10
Using the ADXL203 as a Dual-Axis Tilt Sensor .................... 10
Pin Configurations and Functional Descriptions ...................... 11
Outline Dimensions ....................................................................... 12
Ordering Guide .......................................................................... 12
REVISION HISTORY
Revision 0: Initial Version
ADXL103/ADXL203
Rev. 0 | Page 3 of 12
SPECIFICATIONS
Table 1. T
A
= 40C to +125C, V
S
= 5 V, C
X
= C
Y
= 0.1 F, Acceleration = 0 g, unless otherwise noted.
Parameter Conditions
Min
Typ
Max
Unit
SENSOR INPUT
Each Axis
Measurement Range
1
1.7
g
Nonlinearity
% of Full Scale
0.5
2.5
%
Package Alignment Error
1
Degrees
Alignment Error (ADXL203)
X Sensor to Y Sensor
0.1
Degrees
Cross Axis Sensitivity
2
5
%
SENSITIVITY (Ratiometric)
2
Each
Axis
Sensitivity at X
OUT
, Y
OUT
V
S
= 5 V
940
1000
1060
mV/g
Sensitivity Change due to Temperature
3
V
S
= 5 V
0.3
%
ZERO g BIAS LEVEL (Ratiometric)
Each Axis
0 g Voltage at X
OUT
, Y
OUT
V
S
= 5 V
2.4
2.5
2.6
V
Initial 0 g Output Deviation from Ideal
V
S
= 5 V, 25C
25
mg
0 g Offset vs. Temperature
0.1
mg/C
NOISE
PERFORMANCE
Output Noise
< 4 kHz, V
S
= 5 V, 25C
1
6
mV rms
Noise Density
@25C
110
g/Hz rms
FREQUENCY RESPONSE
4
C
X
, C
Y
Range
5
0.002
10
F
R
FILT
Tolerance
24 32 40 k
Sensor Resonant Frequency
5.5
kHz
SELF TEST
6
Logic Input Low
1
V
Logic Input High
4
V
ST Input Resistance to Ground
30
50
k
Output Change at X
OUT
, Y
OUT
Self Test 0 to 1
400
750
1100
mV
OUTPUT
AMPLIFIER
Output Swing Low
No Load
0.3
V
Output Swing High
No Load
4.5
V
POWER
SUPPLY
Operating Voltage Range
3
6
V
Quiescent Supply Current
0.7
1.1
mA
Turn-On Time
7
20
ms
1
Guaranteed by measurement of initial offset and sensitivity.
2
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 32 k C). For C
X
, C
Y
= 0.002 F, Bandwidth = 2500 Hz. For C
X
, C
Y
= 10 F, 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
will increase turn-on time. Turn-on time is approximately 160 C
X
or C
Y
+ 4 ms, where C
X
, C
Y
are in F.
All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed.
ADXL103/ADXL203
Rev. 0 | Page 4 of 12
ABSOLUTE MAXIMUM RATINGS
Table 2. ADXL103/ADXL203 Stress Ratings
Parameter Rating
Acceleration (Any Axis, Unpowered)
3,500 g
Acceleration (Any Axis, Powered)
3,500 g
Drop Test (Concrete Surface)
1.2 m
V
S
0.3 V to +7.0 V
All Other Pins
(COM 0.3 V) to
(V
S
+ 0.3 V)
Output Short-Circuit Duration
(Any Pin to Common)
Indefinite
Operating Temperature Range
55C to +125C
Storage Temperature
65C to +150C
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.
Table 3. Package Characteristics
Package Type
JA
JC
Device Weight
8-Lead CLCC
120C/W
20C/W
<1.0 gram
03757-0-002
t
P
t
L
t
25C TO PEAK
t
S
PREHEAT
CRITICAL ZONE
T
L
TO T
P
TE
MP
E
RATURE
TIME
RAMP-DOWN
RAMP-UP
T
SMIN
T
SMAX
T
P
T
L
Condition
Profile Feature
Sn63/Pb37 Pb
Free
Average Ramp Rate (T
L
to T
P
) 3C/second
Max
Preheat
Minimum Temperature (T
SMIN
)
100C 150C
Minimum Temperature (T
SMAX
)
150C 200C
Time (T
SMIN
to T
SMAX
) (t
S
)
60120 seconds
60150 seconds
T
SMAX
to T
L
Ramp-Up Rate
3C/second
Time Maintained above Liquidous (T
L
)
Liquidous Temperature (T
L
)
183C 217C
Time (t
L
)
60150 seconds
60150 seconds
Peak Temperature (T
P
)
240C +0C/5C
260C +0C/5C
Time within 5C of Actual Peak Temperature (t
P
)
1030 seconds
2040 seconds
Ramp-Down Rate
6C/second Max
Time 25C to Peak Temperature
6 minutes Max
8 minutes Max
Figure 2. Recommended Soldering Profile
ADXL103/ADXL203
Rev. 0 | Page 5 of 12
TYPICAL PERFORMANCE CHARACTERISTICS
(V
S
= 5 V for all graphs, unless otherwise noted.)
PER
C
E
N
T
OF POPU
LA
TION
(
%
)
0
25
20
15
10
5
03757-0-010
VOLTS
0
.
1
0
0
.
0
8
0
.
0
6
0.04
0
.
0
2
0
0.02
0.04
0.06
0.08
0.10
Figure 3. X Axis Zero g Bias Deviation from Ideal at 25C
PER
C
E
N
T
OF POPU
LA
TION
(
%
)
0
25
30
20
15
10
5
03757-0-011
mg/C
0.80
0.70
0.60
0
.
5
0
0.40
0.30
0.20
0.10
0
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
Figure 4. X Axis Zero g Bias Tempco
PER
C
E
N
T
OF POPU
LA
TION
(
%
)
0
35
40
20
25
30
15
10
5
03757-0-012
VOLTS/g
0.94
0.95
0.96
0.97
0.98
0.99
1.00
1.01
1.02
1.03
1.04
1.05
1.06
Figure 5. X Axis Sensitivity at 25C
PER
C
E
N
T
OF POPU
LA
TION
(
%
)
0
30
25
20
15
10
5
03757-0-013
VOLTS
0
.
1
0
0
.
0
8
0
.
0
6
0.04
0
.
0
2
0
0.02
0.04
0.06
0.08
0.10
Figure 6. Y Axis Zero g Bias Deviation from Ideal at 25C
PER
C
E
N
T
OF POPU
LA
TION
(
%
)
0
25
20
15
10
5
03757-0-014
mg/C
0
.
8
0
0
.
7
0
0
.
6
0
0.50
0
.
4
0
0
.
3
0
0
.
2
0
0
.
1
0
0
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
Figure 7. Y Axis Zero g Bias Tempco
PER
C
E
N
T
OF POPU
LA
TION
(
%
)
0
35
40
20
25
30
15
10
5
03757-0-015
VOLTS/g
0.94
0.95
0.96
0.97
0.98
0.99
1.00
1.01
1.02
1.03
1.04
1.05
1.06
Figure 8. Y Axis Sensitivity at 25C
ADXL103/ADXL203
Rev. 0 | Page 6 of 12
TEMPERATURE (C)
VOLTA
GE (
1
V/
g
)
50
2.40
2.60
2.58
2.56
2.54
2.52
2.50
2.48
2.46
2.44
2.42
40
30
20
10
0
10
20
30
50
40
60
70
80
90
100
110
120
130
03757-0-004
Figure 9. Zero g Bias vs. Temperature Parts Soldered to PCB
X AXIS NOISE DENSITY (
g/
Hz)
PER
C
E
N
T
OF POPU
LA
TION
(
%
)
0
40
35
30
25
20
15
10
5
45
50
03757-0-007
150
140
130
120
110
100
90
80
70
60
Figure 10. X Axis Noise Density at 25C
PERCENT SENSITIVITY (%)
PER
C
E
N
T
OF POPU
LA
TION
(
%
)
5.0
0
30
25
20
15
10
5
35
40
4.0
3.0
2
.
0
1.0
0
1.0
2.0
3.0
4.0
5.0
03757-0-005
Figure 11. Z vs. X Cross-Axis Sensitivity
TEMPERATURE (C)
SEN
SITIVITY (
V
/
g
)
50
0.97
1.00
0.99
0.98
1.02
1.01
1.03
40
30
20
10
0
10
20
30
50
40
60
70
80
90
100
110
120
130
03757-0-016
Figure 12. Sensitivity vs. Temperature Parts Soldered to PCB
X AXIS NOISE DENSITY (
g/
Hz)
PER
C
E
N
T
OF POPU
LA
TION
(
%
)
0
40
35
30
25
20
15
10
5
45
50
03757-0-008
150
140
130
120
110
100
90
80
70
60
Figure 13. Y Axis Noise Density at 25C
PERCENT SENSITIVITY (%)
PER
C
E
N
T
OF POPU
LA
TION
(
%
)
5.0
0
30
25
20
15
10
5
35
40
4.0
3.0
2
.
0
1.0
0
1.0
2.0
3.0
4.0
5.0
03757-0-006
Figure 14. Z vs. Y Cross-Axis Sensitivity
ADXL103/ADXL203
Rev. 0 | Page 7 of 12
TEMPERATURE (C)
CURRE
NT (mA)
0.3
0.8
0.7
0.6
0.5
0.4
0.9
03757-0-020
150
100
50
0
50
V
S
= 5V
V
S
= 3V
Figure 15. Supply Current vs. Temperature
PER
C
E
N
T
OF POPU
LA
TION
(
%
)
0
45
20
25
30
35
40
15
10
5
03757-0-017
VOLTS
0.40
0.45
0.50
0.55
0.65
0.60
0.70
0.75
0.80
0.85
0.90
0.95
1.00
Figure 16. X Axis Self Test Response at 25C
TEMPERATURE (C)
VOLTAGE (1V/g)
50
0.50
0.80
0.75
0.70
0.65
0.60
0.55
0.85
0.90
40
30
20
10
0
10
20
30
50
40
60
70
80
90
100
110
120
130
03757-0-003
Figure 17. Self Test Response vs. Temperature
PER
C
E
N
T
OF POPU
LA
TION
(
%
)
0
80
70
60
50
40
30
20
10
90
100
03757-0-018
A
3V
5V
200
300
400
500
600
700
800
900
1000
Figure 18. Supply Current at 25C
PER
C
E
N
T
OF POPU
LA
TION
(
%
)
0
45
20
25
30
35
40
15
10
5
03757-0-019
VOLTS
0.40
0.45
0.50
0.55
0.65
0.60
0.70
0.75
0.80
0.85
0.90
0.95
1.00
Figure 19. Y Axis Self Test Response at 25C
03757-0-009
Figure 20. Turn-On Time C
X
, C
Y
= 0.1 F, Time Scale = 2 ms/div
ADXL103/ADXL203
Rev. 0 | Page 8 of 12
THEORY OF OPERATION
EARTH'S SURFACE
03757-0-021
TOP VIEW
(Not to Scale)
PIN 8
X
OUT
= 2.5V
Y
OUT
= 1.5V
X
OUT
= 2.5V
Y
OUT
= 2.5V
PIN 8
X
OUT
= 2.5V
Y
OUT
= 3.5V
PIN 8
X
OUT
= 1.5V
Y
OUT
= 2.5V
PIN 8
X
OUT
= 3.5V
Y
OUT
= 2.5V
Figure 21. Output Response vs. Orientation
The ADXL103/ADXL203 are complete acceleration measure-
ment systems on a single monolithic IC. The ADXL103 is a
single axis accelerometer, while the ADXL203 is a dual axis
accelerometer. Both parts contain a polysilicon surface-
micromachined sensor and signal conditioning circuitry to
implement an open-loop acceleration measurement architec-
ture. The output signals are analog voltages proportional to
acceleration. The ADXL103/ADXL203 are capable of measuring
both positive and negative accelerations to at least 1.7 g. The
accelerometer can measure static acceleration forces such as
gravity, allowing it to be used as a tilt sensor.
The sensor is a surface-micromachined polysilicon structure
built on top of the silicon wafer. Polysilicon springs suspend the
structure over the surface of the wafer and provide a resistance
against acceleration forces. Deflection of the structure is mea-
sured using a differential capacitor that consists of independent
fixed plates and plates attached to the moving mass. The fixed
plates are driven by 180 out-of-phase square waves. Accelera-
tion will deflect the beam and unbalance the differential
capacitor, resulting in an output square wave whose amplitude
is proportional to acceleration. Phase sensitive demodulation
techniques are then used to rectify the signal and determine the
direction of the acceleration.
The output of the demodulator is amplified and brought off-
chip through a 32 k resistor. At this point, the user can set the
signal bandwidth of the device by adding a capacitor. This
filtering improves measurement resolution and helps prevent
aliasing.
PERFORMANCE
Rather than using additional temperature compensation
circuitry, innovative design techniques have been used to ensure
high performance is built in. As a result, there is essentially no
quantization error or non-monotonic behavior, and
temperature hysteresis is very low (typically less than 10 mg
over the 40C to +125C temperature range).
Figure 9 shows the zero g output performance of eight parts (X
and Y axis) over a 40C to +125C temperature range.
Figure 12 demonstrates the typical sensitivity shift over
temperature for V
S
= 5 V. Sensitivity stability is optimized for
V
S
= 5 V, but is still very good over the specified range; it is
typically better than 1% over temperature at V
S
= 3 V.
ADXL103/ADXL203
Rev. 0 | Page 9 of 12
APPLICATIONS
POWER SUPPLY DECOUPLING
For most applications, a single 0.1 F capacitor, C
DC
, will
adequately decouple the accelerometer from noise on the power
supply. However in some cases, particularly where noise is pre-
sent at the 140 kHz internal clock frequency (or any harmonic
thereof), noise on the supply may cause interference on the
ADXL103/ADXL203 output. If additional decoupling is needed,
a 100 (or smaller) resistor or ferrite beads may be inserted in
the supply line of the ADXL103/ADXL203. Additionally, a
larger bulk bypass capacitor (in the 1 F to 22 F range) may be
added in parallel to C
DC
.
SETTING THE BANDWIDTH USING C
X
AND C
Y
The ADXL103/ADXL203 has provisions for bandlimiting the
X
OUT
and Y
OUT
pins. Capacitors must be added at these pins to
implement low-pass filtering for antialiasing and noise
reduction. The equation for the 3 dB bandwidth is
F
3 dB
= 1/(2(32 k) C
(X, Y)
)
or more simply,
F
3 dB
= 5 F/C
(X, Y)
The tolerance of the internal resistor (R
FILT
) can vary typically as
much as 25% of its nominal value (32 k); thus, the band-
width will vary accordingly. A minimum capacitance of 2000 pF
for C
X
and C
Y
is required in all cases.
Table 4. Filter Capacitor Selection, C
X
and C
Y
Bandwidth (Hz)
Capacitor (F)
1 4.7
10 0.47
50 0.10
100 0.05
200 0.027
500 0.01
SELF TEST
The ST pin controls the self-test feature. When this pin is set to
V
S
, an electrostatic force is exerted on the beam of the accelero-
meter. The resulting movement of the beam allows the user to
test if the accelerometer is functional. The typical change in
output will be 750 mg (corresponding to 750 mV). This pin may
be left open-circuit or connected to common in normal use.
The ST pin should never be exposed to voltage greater than
V
S
+ 0.3 V. If the system design is such that this condition
cannot be guaranteed (i.e., multiple supply voltages present), a
low V
F
clamping diode between ST and V
S
is recommended.
DESIGN TRADE-OFFS FOR SELECTING FILTER
CHARACTERISTICS: THE NOISE/BW TRADE-OFF
The accelerometer bandwidth selected will ultimately
determine the measurement resolution (smallest detectable
acceleration). Filtering can be used to lower the noise floor,
which improves the resolution of the accelerometer. Resolution
is dependent on the analog filter bandwidth at X
OUT
and Y
OUT
.
The output of the ADXL103/ADXL203 has a typical bandwidth
of 2.5 kHz. The user must filter the signal at this point to limit
aliasing errors. The analog bandwidth must be no more than
half the A/D sampling frequency to minimize aliasing. The
analog bandwidth may be further decreased to reduce noise and
improve resolution.
The ADXL103/ADXL203 noise has the characteristics of white
Gaussian noise, which contributes equally at all frequencies and
is described in terms of g/Hz (i.e., the noise is proportional to
the square root of the accelerometer's bandwidth). The user
should limit bandwidth to the lowest frequency needed by the
application in order to maximize the resolution and dynamic
range of the accelerometer.
With the single pole roll-off characteristic, the typical noise of
the ADXL103/ADXL203 is determined by
)
6
.
1
(
)
/
g
110
(
=
BW
Hz
rmsNoise
At 100 Hz, the noise is
g
4
.
1
)
6
.
1
100
(
)
/
g
110
(
m
Hz
rmsNoise
=
=
Often, the peak value of the noise is desired. Peak-to-peak noise
can only be estimated by statistical methods. Table 5 is useful
for estimating the probabilities of exceeding various peak
values, given the rms value.
Table 5. Estimation of Peak-to-Peak Noise
Peak-to-Peak Value
% of Time That Noise Will Exceed
Nominal Peak-to-Peak Value
2 RMS
32
4 RMS
4.6
6 RMS
0.27
8 RMS
0.006
ADXL103/ADXL203
Rev. 0 | Page 10 of 12
Peak-to-peak noise values give the best estimate of the
uncertainty in a single measurement. Table 6 gives the typical
noise output of the ADXL103/ADXL203 for various C
X
and C
Y
values.
Table 6. Filter Capacitor Selection (C
X
, C
Y
)
Bandwidth(Hz)
C
X
, C
Y
(F)
RMS Noise
(mg)
Peak-to-Peak Noise
Estimate (mg)
10 0.47
0.4
2.6
50 0.1
1.0
6
100 0.047
1.4
8.4
500 0.01
3.1
18.7
USING THE ADXL103/ADXL203 WITH OPERATING
VOLTAGES OTHER THAN 5 V
The ADXL103/ADXL203 is tested and specified at V
S
= 5 V;
however, it can be powered with V
S
as low as 3 V or as high as
6 V. Some performance parameters will change as the supply
voltage is varied.
The ADXL103/ADXL203 output is ratiometric, so the output
sensitivity (or scale factor) will vary proportionally to supply
voltage. At V
S
= 3 V the output sensitivity is typically 560 mV/g.
The zero g bias output is also ratiometric, so the zero g output is
nominally equal to V
S
/2 at all supply voltages.
The output noise is not ratiometric but is absolute in volts;
therefore, the noise density decreases as the supply voltage
increases. This is because the scale factor (mV/g) increases
while the noise voltage remains constant. At V
S
= 3 V, the noise
density is typically 190 g/Hz.
Self-test response in g is roughly proportional to the square of
the supply voltage. However, when ratiometricity of sensitivity
is factored in with supply voltage, self-test response in volts is
roughly proportional to the cube of the supply voltage. So at
V
S
= 3 V, the self-test response will be approximately equivalent
to 150 mV, or equivalent to 270 mg (typical).
The supply current decreases as the supply voltage decreases.
Typical current consumption at V
DD
= 3 V is 450 A.
USING THE ADXL203 AS A DUAL-AXIS TILT
SENSOR
One of the most popular applications of the ADXL203 is tilt
measurement. An accelerometer uses the force of gravity as an
input vector to determine the orientation of an object in space.
An accelerometer is most sensitive to tilt when its sensitive axis
is perpendicular to the force of gravity, i.e., parallel to the earth's
surface. At this orientation, its sensitivity to changes in tilt is
highest. When the accelerometer is oriented on axis to gravity,
i.e., near its +1 g or 1 g reading, the change in output
acceleration per degree of tilt is negligible. When the
accelerometer is perpendicular to gravity, its output will change
nearly 17.5 mg per degree of tilt. At 45, its output changes at
only 12.2 mg per degree and resolution declines.
Dual-Axis Tilt Sensor: Converting Acceleration to Tilt
When the accelerometer is oriented so both its X axis and Y axis
are parallel to the earth's surface, it can be used as a 2-axis tilt
sensor with a roll axis and a pitch axis. Once the output signal
from the accelerometer has been converted to an acceleration
that varies between 1 g and +1 g, the output tilt in degrees is
calculated as follows:
PITCH = ASIN(A
X
/1 g)
ROLL = ASIN(A
Y
/1 g)
Be sure to account for overranges. It is possible for the
accelerometers to output a signal greater than 1 g due to
vibration, shock, or other accelerations.
ADXL103/ADXL203
Rev. 0 | Page 11 of 12
PIN CONFIGURATIONS AND FUNCTIONAL DESCRIPTIONS
ADXL103E
TOP VIEW
(Not to Scale)
ST
1
DNC
2
COM
3
DNC
4
X
OUT
DNC
DNC
7
6
5
V
S
8
03757-0-022
Figure 22. ADXL103 8-Lead CLCC
Table 7. ADXL103 8-Lead CLCC Pin Function Descriptions
Pin No.
Mnemonic
Description
1 ST
Self
Test
2
DNC
Do Not Connect
3 COM Common
4
DNC
Do Not Connect
5
DNC
Do Not Connect
6
DNC
Do Not Connect
7 X
OUT
X Channel Output
8 V
S
3 V to 6 V
ADXL203E
TOP VIEW
(Not to Scale)
ST
1
DNC
2
COM
3
DNC
4
X
OUT
Y
OUT
DNC
7
6
5
V
S
8
03757-0-023
Figure 23. ADXL203 8-Lead CLCC
Table 8. ADXL203 8-Lead CLCC Pin Function Descriptions
Pin No.
Mnemonic
Description
1 ST
Self
Test
2
DNC
Do Not Connect
3 COM Common
4
DNC
Do Not Connect
5
DNC
Do Not Connect
6 Y
OUT
Y Channel Output
7 X
OUT
X Channel Output
8 V
S
3 V to 6 V
ADXL103/ADXL203
Rev. 0 | Page 12 of 12
OUTLINE DIMENSIONS
BOTTOM VIEW
1
3
5
7
0.64
1.90
2.50
2.50
0.38 DIAMETER
0.50 DIAMETER
1.27
1.27
1.27
4.50
SQ
5.00
SQ
TOP VIEW
R 0.38
0.15
1.78
R 0.20
Figure 24. 8-Terminal Ceramic Leadless Chip Carrier [LCC]
(E-8)
Dimensions shown in millimeters
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the
human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
ORDERING GUIDE
ADXL103/ADXL203
Products
Number of
Axes
Specified Voltage
(V)
Temperature
Range
Package Description
Package
Option
ADXL103CE
1
1
5
40C to +125C
8-Lead Ceramic Leadless Chip Carrier
E-8
ADXL103CEREEL
1
1
5
40C to +125C
8-Lead Ceramic Leadless Chip Carrier
E-8
ADXL203CE
1
2
5
40C to +125C
8-Lead Ceramic Leadless Chip Carrier
E-8
ADXL203CEREEL
1
2
5
40C to +125C
8-Lead Ceramic Leadless Chip Carrier
E-8
ADXL203EB Evaluation Board
Evaluation Board
1
Lead finish--Gold over Nickel over Tungsten.
2004 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D0375704/04(0)
Document Outline
- FEATURES
- APPLICATIONS
- GENERAL DESCRIPTION
- FUNCTIONAL BLOCK DIAGRAM
-
-
-
-
-
-
-
- ORDERING GUIDE
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