Precision 1.7 g Single/Dual Axis Accelerometer ADXL103/ADXL203 FEATURES GENERAL DESCRIPTION High performance, single/dual axis accelerometer on a single IC chip 5 mm x 5 mm x 2 mm LCC package 1 mg resolution at 60 Hz Low power: 700 A at VS = 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 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 CX and CY at the XOUT and YOUT pins. Bandwidths of 0.5 Hz to 2.5 kHz may be selected to suit the application. 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 The ADXL103 and ADXL203 are available in 5 mm x 5 mm x 2 mm, 8-pad hermetic LCC packages. FUNCTIONAL BLOCK DIAGRAM +5V +5V VS VS ADXL203 ADXL103 AC AMP DEMOD OUTPUT AMP SENSOR CDC AC AMP OUTPUT AMP OUTPUT AMP SENSOR RFILT 32k COM DEMOD ST RFILT 32k XOUT COM CX ST 03757-0-001 CDC RFILT 32k YOUT XOUT CY CX Figure 1. ADXL103/ADXL203 Functional Block Diagram 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 (c) 2004 Analog Devices, Inc. All rights reserved. ADXL103/ADXL203 TABLE OF CONTENTS Specifications..................................................................................... 3 Self Test ...........................................................................................9 Absolute Maximum Ratings............................................................ 4 Design Trade-Offs for Selecting Filter Characteristics: The Noise/BW Trade-Off.....................................................................9 Typical Performance Characteristics ............................................. 5 Theory of Operation ........................................................................ 8 Using the ADXL103/ADXL203 with Operating Voltages Other than 5 V............................................................................ 10 Performance .................................................................................. 8 Using the ADXL203 as a Dual-Axis Tilt Sensor .................... 10 Applications....................................................................................... 9 Pin Configurations and Functional Descriptions ...................... 11 Power Supply Decoupling ........................................................... 9 Outline Dimensions ....................................................................... 12 Setting the Bandwidth Using CX and CY.................................... 9 Ordering Guide .......................................................................... 12 REVISION HISTORY Revision 0: Initial Version Rev. 0 | Page 2 of 12 ADXL103/ADXL203 SPECIFICATIONS Table 1. TA = -40C to +125C, VS = 5 V, CX = CY = 0.1 F, Acceleration = 0 g, unless otherwise noted. Parameter SENSOR INPUT Measurement Range1 Nonlinearity Package Alignment Error Alignment Error (ADXL203) Cross Axis Sensitivity SENSITIVITY (Ratiometric)2 Sensitivity at XOUT, YOUT Sensitivity Change due to Temperature3 ZERO g BIAS LEVEL (Ratiometric) 0 g Voltage at XOUT, YOUT Initial 0 g Output Deviation from Ideal 0 g Offset vs. Temperature NOISE PERFORMANCE Output Noise Noise Density FREQUENCY RESPONSE4 CX, CY Range5 RFILT Tolerance Sensor Resonant Frequency SELF TEST6 Logic Input Low Logic Input High ST Input Resistance to Ground Output Change at XOUT, YOUT OUTPUT AMPLIFIER Output Swing Low Output Swing High POWER SUPPLY Operating Voltage Range Quiescent Supply Current Turn-On Time7 Conditions Each Axis Min Typ Max 0.5 1 0.1 2 2.5 940 1000 0.3 1060 mV/g % 2.4 2.5 25 0.1 2.6 V mg mg/C 1 110 6 mV rms g/Hz rms 10 40 F k kHz 1 V V k mV 1.7 % of Full Scale X Sensor to Y Sensor Each Axis VS = 5 V VS = 5 V Each Axis VS = 5 V VS = 5 V, 25C < 4 kHz, VS = 5 V, 25C @25C 0.002 24 Self Test 0 to 1 4 30 400 No Load No Load 32 5.5 50 750 5 1100 0.3 4.5 3 0.7 20 1 Unit g % Degrees Degrees % V V 6 1.1 V mA ms Guaranteed by measurement of initial offset and sensitivity. 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. 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 x x 32 k x C). For CX, CY = 0.002 F, Bandwidth = 2500 Hz. For CX, CY = 10 F, 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 x CX or CY + 4 ms, where CX, CY are in F. 2 3 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 Table 3. Package Characteristics Parameter Acceleration (Any Axis, Unpowered) Acceleration (Any Axis, Powered) Drop Test (Concrete Surface) VS All Other Pins Package Type 8-Lead CLCC Rating 3,500 g 3,500 g 1.2 m -0.3 V to +7.0 V (COM - 0.3 V) to (VS + 0.3 V) Output Short-Circuit Duration (Any Pin to Common) Operating Temperature Range Storage Temperature JA 120C/W Indefinite -55C to +125C -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. CRITICAL ZONE TL TO TP tP TP tL TSMAX TSMIN tS RAMP-DOWN PREHEAT 03757-0-002 TEMPERATURE RAMP-UP TL t25C TO PEAK TIME Condition Sn63/Pb37 Pb Free 3C/second Max Profile Feature Average Ramp Rate (TL to TP) Preheat * Minimum Temperature (TSMIN) 100C 150C * Minimum Temperature (TSMAX) 150C 200C 60-120 seconds 60-150 seconds * Time (TSMIN to TSMAX) (tS) TSMAX to TL * Ramp-Up Rate Time Maintained above Liquidous (TL) * 3C/second 183C 217C 60-150 seconds 60-150 seconds Liquidous Temperature (TL) * Time (tL) Peak Temperature (TP) Time within 5C of Actual Peak Temperature (tP) Ramp-Down Rate Time 25C to Peak Temperature 240C +0C/-5C 260C +0C/-5C 10-30 seconds 20-40 seconds 6C/second Max 6 minutes Max 8 minutes Max Figure 2. Recommended Soldering Profile Rev. 0 | Page 4 of 12 JC 20C/W Device Weight <1.0 gram 1.06 1.05 1.04 1.03 1.02 1.01 1.00 0.99 0.98 0.97 0.96 15 10 5 0 VOLTS/g Figure 5. X Axis Sensitivity at 25C Rev. 0 | Page 5 of 12 03757-0-015 20 VOLTS/g Figure 8. Y Axis Sensitivity at 25C 1.06 25 1.05 35 1.04 35 1.03 40 1.02 mg/C 1.01 40 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0 -0.10 -0.20 03757-0-014 VOLTS 1.00 Figure 4. X Axis Zero g Bias Tempco 0.99 0 -0.30 10 0.98 15 -0.40 25 0.97 30 -0.60 Figure 3. X Axis Zero g Bias Deviation from Ideal at 25C -0.50 0.10 0.08 0.06 0.04 0.02 0 -0.02 -0.04 -0.06 -0.08 5 03757-0-013 0 -0.10 PERCENT OF POPULATION (%) 5 0.96 03757-0-010 10 -0.70 0.10 15 -0.80 20 PERCENT OF POPULATION (%) 5 03757-0-011 0.08 0.06 0.04 0.02 0 -0.02 -0.04 -0.06 -0.08 -0.10 20 0.95 30 PERCENT OF POPULATION (%) 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0 -0.10 -0.20 -0.30 -0.40 -0.50 -0.60 -0.70 PERCENT OF POPULATION (%) 25 0.94 5 03757-0-012 0 0.95 0 -0.80 PERCENT OF POPULATION (%) 0 0.94 PERCENT OF POPULATION (%) ADXL103/ADXL203 TYPICAL PERFORMANCE CHARACTERISTICS (VS = 5 V for all graphs, unless otherwise noted.) 30 25 20 15 10 VOLTS Figure 6. Y Axis Zero g Bias Deviation from Ideal at 25C 25 20 15 10 5 mg/C Figure 7. Y Axis Zero g Bias Tempco 30 25 20 15 10 ADXL103/ADXL203 2.60 1.03 2.58 1.02 SENSITIVITY (V/g) 2.52 2.50 2.48 2.46 2.44 1.00 0.99 45 40 40 35 30 25 20 15 10 140 70 20 15 03757-0-005 10 120 90 110 150 30 25 20 15 10 PERCENT SENSITIVITY (%) 3.0 2.0 1.0 0 -1.0 -2.0 -4.0 0 -5.0 5 5.0 4.0 3.0 2.0 5 1.0 140 03757-0-006 PERCENT OF POPULATION (%) 25 0 80 90 100 110 120 130 X AXIS NOISE DENSITY (g/Hz) Figure 13. Y Axis Noise Density at 25C 30 -1.0 100 03757-0-016 60 35 -2.0 80 0 150 35 -3.0 70 5 40 -4.0 60 10 40 -5.0 PERCENT OF POPULATION (%) 50 15 Figure 10. X Axis Noise Density at 25C 0 40 20 -3.0 80 90 100 110 120 130 X AXIS NOISE DENSITY (g/Hz) 25 5.0 0 30 4.0 5 35 03757-0-008 PERCENT OF POPULATION (%) 50 45 03757-0-007 PERCENT OF POPULATION (%) Figure 12. Sensitivity vs. Temperature - Parts Soldered to PCB 50 70 30 TEMPERATURE (C) Figure 9. Zero g Bias vs. Temperature - Parts Soldered to PCB 60 20 0 TEMPERATURE (C) 10 -10 -20 -30 0.97 -40 03757-0-004 0.98 130 120 110 90 100 80 70 60 50 40 30 20 0 10 -10 -20 -30 -40 2.40 -50 2.42 1.01 -50 VOLTAGE (1V/g) 2.54 130 2.56 PERCENT SENSITIVITY (%) Figure 11. Z vs. X Cross-Axis Sensitivity Figure 14. Z vs. Y Cross-Axis Sensitivity Rev. 0 | Page 6 of 12 ADXL103/ADXL203 0.9 100 90 VS = 5V 0.6 0.5 VS = 3V 03757-0-020 30 20 1000 900 0 150 800 10 700 100 40 600 50 TEMPERATURE (C) 50 500 0 60 400 0.3 -50 3V 70 300 0.4 80 200 CURRENT (mA) 0.7 5V 03757-0-018 PERCENT OF POPULATION (%) 0.8 A Figure 18. Supply Current at 25C 40 40 35 30 25 20 15 10 30 25 20 15 10 1.00 0.95 0.90 0.85 0.80 0.75 0.70 0.65 0.60 0.55 0.50 0.45 0 0.40 5 1.00 0.95 0.90 0.85 0.80 0.75 0.70 0.65 0.60 0.55 0.50 0.40 0 0.45 5 35 03757-0-019 PERCENT OF POPULATION (%) 45 45 03757-0-017 PERCENT OF POPULATION (%) Figure 15. Supply Current vs. Temperature VOLTS VOLTS Figure 19. Y Axis Self Test Response at 25C Figure 16. X Axis Self Test Response at 25C 0.90 0.85 0.75 0.70 0.65 130 120 110 100 90 80 70 60 50 40 30 20 0 10 -10 -20 -30 0.50 -50 0.55 03757-0-009 03757-0-003 0.60 -40 VOLTAGE (1V/g) 0.80 TEMPERATURE (C) Figure 20. Turn-On Time - CX, CY = 0.1 F, Time Scale = 2 ms/div Figure 17. Self Test Response vs. Temperature Rev. 0 | Page 7 of 12 ADXL103/ADXL203 THEORY OF OPERATION PIN 8 XOUT = 1.5V YOUT = 2.5V PIN 8 XOUT = 2.5V YOUT = 1.5V TOP VIEW (Not to Scale) XOUT = 2.5V YOUT = 2.5V PIN 8 XOUT = 3.5V YOUT = 2.5V EARTH'S SURFACE 03757-0-021 PIN 8 XOUT = 2.5V YOUT = 3.5V 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. The output of the demodulator is amplified and brought offchip 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 VS = 5 V. Sensitivity stability is optimized for VS = 5 V, but is still very good over the specified range; it is typically better than 1% over temperature at VS = 3 V. Rev. 0 | Page 8 of 12 ADXL103/ADXL203 APPLICATIONS POWER SUPPLY DECOUPLING For most applications, a single 0.1 F 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 (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 CDC. SETTING THE BANDWIDTH USING CX AND CY The ADXL103/ADXL203 has provisions for bandlimiting the XOUT and YOUT 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) x C(X, Y)) or more simply, F-3 dB = 5 F/C(X, Y) The tolerance of the internal resistor (RFILT) can vary typically as much as 25% of its nominal value (32 k); thus, the bandwidth will vary accordingly. A minimum capacitance of 2000 pF for CX and CY is required in all cases. 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 XOUT and YOUT. 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 rmsNoise = (110g / Hz ) x ( BW x 1.6 ) At 100 Hz, the noise is Table 4. Filter Capacitor Selection, CX and CY Bandwidth (Hz) 1 10 50 100 200 500 rmsNoise = (110g / Hz ) x ( 100 x 1.6 ) = 1.4mg Capacitor (F) 4.7 0.47 0.10 0.05 0.027 0.01 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 SELF TEST The ST pin controls the self-test feature. When this pin is set to VS, an electrostatic force is exerted on the beam of the accelerometer. 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. Peak-to-Peak Value 2 x RMS 4 x RMS 6 x RMS 8 x RMS The ST pin should never be exposed to voltage greater than VS + 0.3 V. If the system design is such that this condition cannot be guaranteed (i.e., multiple supply voltages present), a low VF clamping diode between ST and VS is recommended. Rev. 0 | Page 9 of 12 % of Time That Noise Will Exceed Nominal Peak-to-Peak Value 32 4.6 0.27 0.006 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 CX and CY values. Table 6. Filter Capacitor Selection (CX, CY) Bandwidth(Hz) 10 50 100 500 CX, CY (F) 0.47 0.1 0.047 0.01 RMS Noise (mg) 0.4 1.0 1.4 3.1 Peak-to-Peak Noise Estimate (mg) 2.6 6 8.4 18.7 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 VS 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 VS = 3 V the output sensitivity is typically 560 mV/g. 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: The zero g bias output is also ratiometric, so the zero g output is nominally equal to VS/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 VS = 3 V, the noise density is typically 190 g/Hz. PITCH = ASIN(AX/1 g) ROLL = ASIN(AY/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. 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 VS = 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 VDD = 3 V is 450 A. Rev. 0 | Page 10 of 12 ADXL103/ADXL203 PIN CONFIGURATIONS AND FUNCTIONAL DESCRIPTIONS ADXL103E ADXL203E TOP VIEW (Not to Scale) TOP VIEW (Not to Scale) VS VS 8 XOUT ST 1 7 XOUT DNC 2 6 DNC DNC 2 6 YOUT COM 3 5 DNC COM 3 5 DNC 4 DNC 03757-0-022 7 4 DNC Figure 22. ADXL103 8-Lead CLCC 03757-0-023 8 ST 1 Figure 23. ADXL203 8-Lead CLCC Table 7. ADXL103 8-Lead CLCC Pin Function Descriptions Table 8. ADXL203 8-Lead CLCC Pin Function Descriptions Pin No. 1 2 3 4 5 6 7 8 Pin No. 1 2 3 4 5 6 7 8 Mnemonic ST DNC COM DNC DNC DNC XOUT VS Description Self Test Do Not Connect Common Do Not Connect Do Not Connect Do Not Connect X Channel Output 3 V to 6 V Rev. 0 | Page 11 of 12 Mnemonic ST DNC COM DNC DNC YOUT XOUT VS Description Self Test Do Not Connect Common Do Not Connect Do Not Connect Y Channel Output X Channel Output 3 V to 6 V ADXL103/ADXL203 OUTLINE DIMENSIONS 5.00 SQ 1.27 1.78 1.27 4.50 SQ 7 0.50 DIAMETER 1 1.90 2.50 TOP VIEW 1.27 R 0.38 0.15 5 3 0.64 2.50 0.38 DIAMETER R 0.20 BOTTOM VIEW 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 ADXL103CE1 ADXL103CE-REEL1 ADXL203CE1 ADXL203CE-REEL1 ADXL203EB Evaluation Board 1 Number of Axes 1 1 2 2 Specified Voltage (V) 5 5 5 5 Temperature Range -40C to +125C -40C to +125C -40C to +125C -40C to +125C Lead finish--Gold over Nickel over Tungsten. (c) 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 Package Description 8-Lead Ceramic Leadless Chip Carrier 8-Lead Ceramic Leadless Chip Carrier 8-Lead Ceramic Leadless Chip Carrier 8-Lead Ceramic Leadless Chip Carrier Evaluation Board Package Option E-8 E-8 E-8 E-8