Datasheet ADXL103 Datasheet (Analog Devices)

Precision ±1.7 g

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
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)
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

= 5 V (typical)

S

Single/Dual Axis 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 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 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
capacitors C

and CY at the X

X

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.

OUT

and Y

pins. Bandwidths of

OUT

FUNCTIONAL BLOCK DIAGRAM

+5V

V

S

ADXL103

C

DC

SENSOR

COM ST X

AC

AMP

DEMOD

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.

OUTPUT

AMP

R

FILT

32kΩ

OUT

C

X

Figure 1. ADXL103/ADXL203 Functional Block Diagram

+5V

V

S

ADXL203

C

DC

SENSOR

COM ST Y

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] www.analog.com
Fax: [phone] © 2004 Analog Devices, Inc. All rights reserved.

AC

AMP

DEMOD

R

FILT

32kΩ

OUTPUT

AMP

OUTPUT

AMP

R

FILT

32kΩ

OUT

C

Y

03757-0-001

X

OUT

C

X

ADXL103/ADXL203

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 CX and CY.................................... 9

REVISION HISTORY

Revision 0: Initial Version

Self Test...........................................................................................9

Design Trade-Offs for Selecting Filter Characteristics: The
Noise/BW Trade-Off

Using the ADXL103/ADXL203 with Operating Voltages
Other than 5 V

Using the ADXL203 as a Dual-Axis Tilt Sensor .................... 10

Pin Configurations and Functional Descriptions...................... 11

Outline Dimensions .......................................................................12

Ordering Guide .......................................................................... 12

.....................................................................9

............................................................................ 10

Rev. 0 | Page 2 of 12

ADXL103/ADXL203

SPECIFICATIONS

Table 1. TA = –40°C to +125°C, VS = 5 V, CX = CY = 0.1 μF, Acceleration = 0 g, unless otherwise noted.

Parameter Conditions Min Typ Max Unit

SENSOR INPUT Each Axis

Measurement Range
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)

Sensitivity at X
Sensitivity Change due to Temperature

ZERO g BIAS LEVEL (Ratiometric) Each Axis

0 g Voltage at X
Initial 0 g Output Deviation from Ideal VS = 5 V, 25°C ±25 mg
0 g Offset vs. Temperature ±0.1 mg/°C

NOISE PERFORMANCE

Output Noise < 4 kHz, VS = 5 V, 25°C 1 6 mV rms
Noise Density @25°C 110 µg/√Hz rms

FREQUENCY RESPONSE

CX, CY Range
R

Tolerance 24 32 40 kΩ

FILT

5

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 kΩ
Output Change at X

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

OUT

OUT

, Y

, Y

OUT

1

OUT

4

±1.7

2

Each Axis
VS = 5 V 940 1000 1060 mV/g

3

VS = 5 V ±0.3 %

VS = 5 V 2.4 2.5 2.6 V

g

0.002 10 µF

, Y

OUT

OUT

7

Self Test 0 to 1 400 750 1100 mV

20 ms

1

Guaranteed by measurement of initial offset and sensitivity.

2

Sensitivity is essentially ratiometric to VS. For VS = 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 (CX, CY).

5

Bandwidth = 1/(2 × π × 32 kΩ × C). For CX, CY = 0.002 µF, Bandwidth = 2500 Hz. For CX, CY = 10 µF, Bandwidth = 0.5 Hz. Minimum/maximum values are not tested.

6

Self-test response changes cubically with VS.

7

Larger values of CX, CY will increase turn-on time. Turn-on time is approximately 160 × CX or CY + 4 ms, where CX, CY are in µF.

All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed.

Rev. 0 | Page 3 of 12

ADXL103/ADXL203

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

All Other Pins

–0.3 V to +7.0 V
(COM – 0.3 V) to

+ 0.3 V)

(V

S

Output Short-Circuit Duration
(Any Pin to Common) Indefinite

Operating Temperature Range –55°C to +125°C
Storage Temperature –65°C to +150°C

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.

T

P

T

L

T

SMAX

RAMP-UP

Table 3. Package Characteristics

Package Type θ

8-Lead CLCC 120°C/W 20°C/W <1.0 gram

t

P

CRITICAL ZONE

t

L

T

TO T

L

JA

θ

JC

Device Weight

P

T

SMIN

TEMPERATURE

t

S

PREHEAT

t

25°C TO PEAK

TIME

RAMP-DOWN

03757-0-002

Condition

Profile Feature

Sn63/Pb37 Pb Free

Average Ramp Rate (TL to TP) 3°C/second Max
Preheat

• Minimum Temperature (T

• Minimum Temperature (T

• Time (T

T

to T

SMAX

to T

SMAX

) (tS)

SMIN

L

• Ramp-Up Rate

SMIN

SMAX

)

)

100°C 150°C
150°C 200°C

60–120 seconds 60–150 seconds

3°C/second

Time Maintained above Liquidous (TL)

• Liquidous Temperature (T

• Time (t

)

L

)

L

183°C 217°C

60–150 seconds 60–150 seconds
Peak Temperature (TP) 240°C +0°C/–5°C 260°C +0°C/–5°C
Time within 5°C of Actual Peak Temperature (tP) 10–30 seconds 20–40 seconds

Ramp-Down Rate 6°C/second Max
Time 25°C to Peak Temperature 6 minutes Max 8 minutes Max

Figure 2. Recommended Soldering Profile

Rev. 0 | Page 4 of 12

ADXL103/ADXL203

TYPICAL PERFORMANCE CHARACTERISTICS

(VS = 5 V for all graphs, unless otherwise noted.)

25

30

20

15

10

5

PERCENT OF POPULATION (%)

0

–0.10

–0.08

–0.06

–0.04

–0.02

VOLTS

0

0.02

0.04

Figure 3. X Axis Zero g Bias Deviation from Ideal at 25°C

30

25

20

15

10

0.06

0.08

0.10

03757-0-010

25

20

15

10

PERCENT OF POPULATION (%)

5

0

–0.10

–0.08

–0.06

–0.04

–0.02

VOLTS

0

0.02

0.04

Figure 6. Y Axis Zero g Bias Deviation from Ideal at 25°C

25

20

15

10

0.06

0.08

03757-0-013

0.10

PERCENT OF POPULATION (%)

5

0.60

0.70

03757-0-011

0.80

0

–0.80

–0.70

–0.60

–0.40

–0.30

–0.50

–0.20

–0.10

mg/°C

0

0.10

0.20

0.30

0.40

0.50

Figure 4. X Axis Zero g Bias Tempco

40

35

30

25

20

15

10

PERCENT OF POPULATION (%)

5

1.05

03757-0-012

1.06

0

0.94

0.95

0.96

0.98

0.99

1.00

1.01

1.02

1.03

0.97

VOLTS/

g

1.04

Figure 5. X Axis Sensitivity at 25°C

5

PERCENT OF POPULATION (%)

0.60

0.70

03757-0-014

0.80

0

–0.80

–0.70

–0.60

–0.40

–0.30

–0.50

0

0.20

0.10

0.30

0.40

–0.20

–0.10

mg/°C

0.50

Figure 7. Y Axis Zero g Bias Tempco

40

35

30

25

20

15

10

PERCENT OF POPULATION (%)

5

1.05

03757-0-015

1.06

0

0.94

0.95

0.96

0.98

0.99

1.00

1.01

1.02

1.03

0.97

VOLTS/

g

1.04

Figure 8. Y Axis Sensitivity at 25°C

Rev. 0 | Page 5 of 12

ADXL103/ADXL203

2.60

2.58

2.56

2.54

2.52

2.50

2.48

VOLTAGE (1V/g)

2.46

2.44

2.42

2.40

–40

–50

Figure 9. Zero g Bias vs. Temperature – Parts Soldered to PCB

50
45

40

35
30

25

20

15

10

PERCENT OF POPULATION (%)

5
0

40

0

–30

1020305040

–20

–10

TEMPERATURE (°C)

X AXIS NOISE DENSITY (µg/√Hz)

607080

Figure 10. X Axis Noise Density at 25°C

1.03

1.02

1.01

)

g

1.00

0.99

SENSITIVITY (V/

0.98

110

120

03757-0-004

130

90

100

0.97

–50

–40

–30

–20

–10

0

1020305040

TEMPERATURE (°C)

607080

90

100

110

120

03757-0-016

130

Figure 12. Sensitivity vs. Temperature – Parts Soldered to PCB

50
45

40

35

30

25

20

15

10

PERCENT OF POPULATION (%)

5

03757-0-007

15014013012011010090807060

0

X AXIS NOISE DENSITY (µg/√Hz)

03757-0-008

15014013012011010090807060

Figure 13. Y Axis Noise Density at 25°C

40

35

30

25

20

15

10

PERCENT OF POPULATION (%)

5

0

–4.0

–5.0

–3.0

–2.0

PERCENT SENSITIVITY (%)

–1.0

0

1.0

2.0

3.0

4.0

03757-0-005

5.0

Figure 11. Z vs. X Cross-Axis Sensitivity

35

30

25

20

15

10

PERCENT OF POPULATION (%)

5

0

–4.0

–5.0

–3.0

–2.0

PERCENT SENSITIVITY (%)

–1.0

0

1.0

2.0

3.0

4.0

03757-0-006

5.0

Figure 14. Z vs. Y Cross-Axis Sensitivity

Rev. 0 | Page 6 of 12

ADXL103/ADXL203

0.9

0.8

0.7

0.6

CURRENT (mA)

0.5

0.4

0.3

45

40

35

30

25

20

15

10

PERCENT OF POPULATION (%)

5

0

0.90

VS = 5V

VS = 3V

TEMPERATURE (°C)

Figure 15. Supply Current vs. Temperature

0.40

0.45

0.50

0.55

0.60

0.65

VOLTS

0.70

0.75

0.80

Figure 16. X Axis Self Test Response at 25°C

0.85

0.90

0.95

150100500–50

1.00

03757-0-020

03757-0-017

100

90

80

300

3V

400

70
60

50

40

30

20

PERCENT OF POPULATION (%)

10

0

200

500

5V

03757-0-018

600

700

800

900

µ

A

1000

Figure 18. Supply Current at 25°C

45

40

35

30

25

20

15

10

PERCENT OF POPULATION (%)

5

0.95

03757-0-019

1.00

0

0.40

0.45

0.50

0.55

0.60

0.65

VOLTS

0.70

0.75

0.80

0.85

0.90

Figure 19. Y Axis Self Test Response at 25°C

VOLTAGE (1V/g)

0.85

0.80

0.75

0.70

0.65

0.60

0.55

0.50

–50

–40

–30

–20

–10

0

1020305040

TEMPERATURE (°C)

Figure 17. Self Test Response vs. Temperature

607080

110

120

03757-0-003

130

Figure 20. Turn-On Time – C

, CY = 0.1 µF, Time Scale = 2 ms/div

X

90

100

03757-0-009

Rev. 0 | Page 7 of 12

ADXL103/ADXL203

THEORY OF OPERATION

PIN 8

= 1.5V

X

OUT

Y

= 2.5V

OUT

PIN 8

= 2.5V

X

OUT

Y

= 3.5V

OUT

TOP VIEW

(Not to Scale)

PIN 8

X

OUT

Y

OUT

Figure 21. Output Response vs. Orientation

The ADXL103/ADXL203 are complete acceleration measure­ment 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 surface­micromachined sensor and signal conditioning circuitry to
implement an open-loop acceleration measurement architec­ture. 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 mea­sured 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. Accelera­tion 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.

= 3.5V
= 2.5V

PIN 8

= 2.5V

X

OUT

Y

= 1.5V

OUT

X

= 2.5V

OUT

Y

= 2.5V

OUT

EARTH'S SURFACE

03757-0-021

The output of the demodulator is amplified and brought off­chip through a 32 kΩ 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 –40°C to +125°C temperature range).

Figure 9 shows the zero g output performance of eight parts (X
and Y axis) over a –40°C to +125°C temperature range.

Figure 12 demonstrates the typical sensitivity shift over
temperature for V

= 5 V, but is still very good over the specified range; it is

V

S

typically better than ±1% over temperature at V

= 5 V. Sensitivity stability is optimized for

S

= 3 V.

S

Rev. 0 | Page 8 of 12

ADXL103/ADXL203

APPLICATIONS

POWER SUPPLY DECOUPLING

For most applications, a single 0.1 µF capacitor, CDC, will
adequately decouple the accelerometer from noise on the power
supply. However in some cases, particularly where noise is pre­sent 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 Ω (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 µF to 22 µF range) may be
added in parallel to C

SETTING THE BANDWIDTH USING CX AND C

DC

.

Y

The ADXL103/ADXL203 has provisions for bandlimiting the

and Y

X

OUT

pins. Capacitors must be added at these pins to

OUT

implement low-pass filtering for antialiasing and noise
reduction. The equation for the 3 dB bandwidth is

= 1/(2π(32 kΩ) × C

F

–3 dB

(X, Y)

)

or more simply,

= 5 µF/C

F

–3 dB

The tolerance of the internal resistor (R

(X, Y)

) can vary typically as

FILT

much as ±25% of its nominal value (32 kΩ); thus, the band­width will vary accordingly. A minimum capacitance of 2000 pF

and CY is required in all cases.

for C

X

Table 4. Filter Capacitor Selection, CX and C

Bandwidth (Hz) Capacitor (µF)

1 4.7
10 0.47
50 0.10
100 0.05
200 0.027
500 0.01

Y

SELF TEST

The ST pin controls the self-test feature. When this pin is set to
V

, an electrostatic force is exerted on the beam of the accelero-

S

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

+ 0.3 V. If the system design is such that this condition

V

S

cannot be guaranteed (i.e., multiple supply voltages present), a

clamping diode between ST and VS is recommended.

low V

F

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

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 µg/√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()/µg110( ××= BWHzrmsNoise

At 100 Hz, the noise is

g4.1)6.1100()/µg110( mHzrmsNoise =××=

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

% of Time That Noise Will Exceed

Peak-to-Peak Value

2 × RMS 32
4 × RMS 4.6
6 × RMS 0.27
8 × RMS 0.006

Nominal Peak-to-Peak Value

OUT

.

Rev. 0 | Page 9 of 12

ADXL103/ADXL203

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
values.

Table 6. Filter Capacitor Selection (C

C

, CY

RMS Noise

Bandwidth(Hz)

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

X

(µF)

(mg)

, CY)

X

Peak-to-Peak Noise
Estimate (mg)

USING THE ADXL103/ADXL203 WITH OPERATING
VOLTAGES OTHER THAN 5 V

The ADXL103/ADXL203 is tested and specified at VS = 5 V;
however, it can be powered with V
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

= 3 V the output sensitivity is typically 560 mV/g.

S

The zero g bias output is also ratiometric, so the zero g output is
nominally equal to V

/2 at all supply voltages.

S

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
density is typically 190 µg/√Hz.

as low as 3 V or as high as

S

= 3 V, the noise

S

and CY

X

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

ROLL = ASIN(A

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.

/1 g)

X

/1 g)

Y

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

= 3 V, the self-test response will be approximately equivalent

V

S

to 150 mV, or equivalent to 270 mg (typical).

The supply current decreases as the supply voltage decreases.
Typical current consumption at V

= 3 V is 450 µA.

DD

Rev. 0 | Page 10 of 12

ADXL103/ADXL203

PIN CONFIGURATIONS AND FUNCTIONAL DESCRIPTIONS

ADXL103E

TOP VIEW

(Not to Scale)

V

S

ST

DNC

COM

8

1
2
3

DNC

X

7

OUT

DNC

6
5

DNC

4

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
8 V

OUT

S

X Channel Output
3 V to 6 V

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
7 X
8 V

OUT

OUT

S

ADXL203E

TOP VIEW

(Not to Scale)

V

S

ST
DNC
COM

8

1
2
3

DNC

X

7

OUT

Y

6

OUT

5

DNC

4

03757-0-023

Figure 23. ADXL203 8-Lead CLCC

Y Channel Output
X Channel Output
3 V to 6 V

Rev. 0 | Page 11 of 12

ADXL103/ADXL203

4

OUTLINE DIMENSIONS

5.00
SQ

.50

TOP VIEW

SQ

R 0.38

Figure 24. 8-Terminal Ceramic Leadless Chip Carrier [LCC]

Dimensions shown in millimeters

1.78

0.15

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

ADXL103CE

1

ADXL103CE–REEL1 1 5 –40°C to +125°C 8-Lead Ceramic Leadless Chip Carrier E-8
ADXL203CE1 2 5 –40°C to +125°C 8-Lead Ceramic Leadless Chip Carrier E-8
ADXL203CE–REEL1 2 5 –40°C to +125°C 8-Lead Ceramic Leadless Chip Carrier E-8
ADXL203EB Evaluation Board Evaluation Board

Number of
Axes

Specified Voltage
(V)

1 5 –40°C to +125°C 8-Lead Ceramic Leadless Chip Carrier E-8

1.27

7

1.27

1.27

5

R 0.20

BOTTOM VIEW

(E-8)

Temperature
Range

0.50 DIAMETER

1

1.90

2.50

0.64

2.50

3

0.38 DIAMETER

Package Description

Package
Option

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.

D03757–0–4/04(0)

Rev. 0 | Page 12 of 12