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ADXL326 Analog Devices Data Sheet manual specifications guide

Summary

The ADXL326 is a small, ultra-low power, complete 3-axis accelerometer designed for demanding motion and tilt sensing applications. It measures acceleration across angles, static gravity, shock, and vibration using a compact LFCSP package. This manual provides comprehensive technical details, including detailed specifications, bandwidth adjustment procedures, design trade-offs, and robust guidelines to ensure optimal integration with your project. Ideal for developers building cost-sensitive, low-power devices ranging from mobile phones and gaming systems to image stabilizers and sports health equipment.

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Small, Low Power, 3-Axis ±16 g

Accelerometer

ADXL326 FEATURES GENERAL DESCRIPTION 3-axis sensing The ADXL326 is a small, low power, complete 3-axis Small, low profile package accelerometer with signal conditioned voltage outputs. The 4 mm × 4 mm × 1.45 mm LFCSP product measures acceleration with a minimum full-scale range Low power: 350 μA typical of ±16 g. It can measure the static acceleration of gravity in tilt- Single-supply operation: 1.8 V to 3.6 V sensing applications, as well as dynamic acceleration, resulting 10,000 g shock survival from motion, shock, or vibration. Excellent temperature stability

The user selects the bandwidth of the accelerometer using

Bandwidth adjustment with a single capacitor per axis

the CX, CY, and CZ capacitors at the XOUT, YOUT, and ZOUT pins.

Ro HS/WEEE lead-free compliant

Bandwidths can be selected to suit the application with a range of 0.5 Hz to 1600 Hz for X and Y axes and a range of APPLICATIONS 0.5 Hz to 550 Hz for the Z axis. Cost-sensitive, low power, motion- and tilt-sensing applications The ADXL326 is available in a small, low profile, 4 mm ×

Mobile devices 4 mm × 1.45 mm, 16-lead, plastic lead frame chip scale package Gaming systems (LFCSP_LQ). Disk drive protection Image stabilization Sports and health devices

FUNCTIONAL BLOCK DIAGRAM +3V

ADXL326

~32kΩ XOUT

OUTPUT AMP

8- CX

3-AXIS SENSOR

~32kΩ YOUT

CDC AC AMP DEMOD OUTPUT AMP

~32kΩ ZOUT

OUTPUT AMP

COM ST

Figure 1.

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

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

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. Tel: 781.329.4700 www.analog.com Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 ©2009 Analog Devices, Inc. All rights reserved.

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Page Summary Contents For ADXL326 Analog Devices Data Sheet manual specifications guide

Page 1 Small, Low Power, 3-Axis ±16 g Accelerometer ADXL326 FEATURES GENERAL DESCRIPTION 3-axis sensing The ADXL326 is a small, low power, complete 3-axis Small, low profile package accelerometer with signal...
Page 2 ADXL326 TABLE OF CONTENTS Features .............................................................................................. 1  Performance ..........................................................
Page 3 ADXL326 SPECIFICATIONS TA = 25°C, VS = 3 V, CX = CY = CZ = 0.1 μF, acceleration = 0 g, unless otherwise noted. All minimum and maximum specifications are guaranteed. Typical specifications are not gua...
Page 4 ADXL326 ABSOLUTE MAXIMUM RATINGS Table 2. Stresses above those listed under Absolute Maximum Ratings Parameter Rating may cause permanent damage to the device. This is a stress Acceleration (Any Axis,...
Page 5 ADXL326 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS NC ADXL326 XOUT12 TOP VIEW (Not to Scale) ST NC11 COM +Z YOUT10 NC +X NC9 NC = NO CONNECT Figure 2. Pin Configuration Table 3. Pin Function Descript...
Page 6 PO PU LA TI PO PU LA TI PO PU LA TI ADXL326 TYPICAL PERFORMANCE CHARACTERISTICS N > 1000 for all typical performance plots, unless otherwise noted. OUTPUT (V) VOLTAGE (m V) Figure 3. X-Axis Zero g ...
Page 7 ADXL326 PO PU LA TI PO PU LA TI PO PU LA TI TEMPERATURE COEFFICIENT (mg/°C) TEMPERATURE (°C) Figure 9. X-Axis Zero g Bias Temperature Coefficient, VS = 3 V Figure 12. X-Axis Zero g Bias vs. Temperatur...
Page 8 PO PU LA TI PO PU LA TI PO PU LA TI ADXL326 TEMPERATURE (°C) SENSITIVITY (V/g) Figure 15. X-Axis Sensitivity at 25°C, VS = 3 V Figure 18. X-Axis Sensitivity vs. Temperature, 8- 8- Eight Parts Soldered...
Page 9 ADXL326 EN (µ CH4: ZOUT, 500m V/DIV CH3: YOUT, 500m V/DIV CH2: XOUT, 500m V/DIV CH1: POWER, 2V/DIV OUTPUTS ARE OFFSET FOR CLARITY 1.5 2.0 2.5 3.0 3.5 4.0 TIME (1ms/DIV) SUPPLY (V) Figure 21. Typical C...
Page 10 ADXL326 THEORY OF OPERATION The ADXL326 is a complete 3-axis acceleration measurement MECHANICAL SENSOR system. The ADXL326 has a measurement range of ±16 g The ADXL326 uses a single structure for sen...
Page 11 ADXL326 APPLICATIONS INFORMATION POWER SUPPLY DECOUPLING DESIGN TRADE-OFFS FOR SELECTING FILTER CHARACTERISTICS: THE NOISE/BW TRADE-OFF For most applications, a single 0.1 μF capacitor, CDC, placed cl...
Page 12 ADXL326 Self test response in g is roughly proportional to the square of AXES OF ACCELERATION SENSITIVITY the supply voltage. However, when ratiometricity of sensitivity AZ is factored in with supply ...
Page 13 ADXL326 LAYOUT AND DESIGN RECOMMENDATIONS The recommended soldering profile is shown in Figure 25, followed by a description of the profile features in Table 6. The recommended PCB layout or solder la...
Page 14 ADXL326 OUTLINE DIMENSIONS 0.20 MIN PIN 1 INDICATOR0.20 MIN PIN 1 INDICATOR 4.15 EXPOSED 2.43 TOP VIEW 4.00 SQ PAD 1.75 SQ (BOTTOM VIEW) 3.85 0.65 BSC 1.08 1.95 BSC 0.05 MAX FOR PROPER CONNECTION OF 1...

Manual Details

Brand Analog Devices
Pages 14
File Size 321.27 KB
Published June 16, 2026
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Frequently Asked Questions

What is the required operating voltage range?

The ADXL326 supports single-supply operation from 1.8 V to 3.6 V.

How can I adjust the signal bandwidth?

Bandwidth is selected using three capacitors (CX, CY, CZ) connected at the X, Y, and Z pins respectively.

What are the axes' available bandwidth ranges?

X/Y axes range from 0.5 Hz to 1600 Hz, while the Z axis ranges from 0.5 Hz to 550 Hz.

Does this sensor survive extreme shocks?

Yes, it features 10,000 g shock survival from motion, shock, or vibration.