ANALOG DEVICES ADXL322 Data Sheet Manual
Summary
The ADXL322 is an ultra-small, low-power, dual-axis accelerometer designed for precise motion and tilt sensing in compact applications. With a 4mm x 4mm footprint and a wide operating voltage range, it provides reliable measurement of both dynamic vibration and static gravity. This manual offers detailed specifications and guides on optimizing performance, including setting the optimal bandwidth and conducting self-tests. It is perfect for developers building smart handheld devices, mobile phones, wearables, and industrial IoT sensors that require high accuracy in a limited space.
Page 1 Text Content
Small and Thin ±2 g Accelerometer
ADXL322 FEATURES GENERAL DESCRIPTION Small and thin
The ADXL322 is a small, thin, low power, complete, dual-axis
4 mm × 4 mm × 1.45 mm LFCSP package
accelerometer with signal conditioned voltage outputs, which
2 mg resolution at 60 Hz
are all on a single monolithic IC. The product measures accel-
Wide supply voltage range: 2.4 V to 6 V
eration with a full-scale range of ±2 g (typical). It can also
Low power: 340 μA at VS = 2.4 V (typ)
measure both dynamic acceleration (vibration) and static
Good zero g bias stability
acceleration (gravity).
Good sensitivity accuracy
X-axis and Y-axis aligned to within 0.1° (typ) The ADXL322’s typical noise floor is 220 μg/√Hz, which allows BW adjustment with a single capacitor signals below 2 mg to be resolved in tilt-sensing applications Single-supply operation using narrow bandwidths (<60 Hz).
10,000 g shock survival
The user selects the bandwidth of the accelerometer using
Pb Free: Compatible with Sn/Pb and Pb-free solder processes
capacitors CX and CY at the XOUT and YOUT pins. Bandwidths of 0.5 Hz to 2.5 k Hz can be selected to suit the application.
APPLICATIONS
Cost-sensitive motion- and tilt-sensing applications The ADXL322 is available in a 4 mm × 4 mm × 1.45 mm, Smart hand-held devices 16-lead, plastic LFCSP.
Mobile phones Sports and health-related devices PC security and PC peripherals
www.BDTIC.com/ADI FUNCTIONAL BLOCK DIAGRAM +3V
ADXL322
CDC OUTPUT OUTPUT
DEMODAC
AMP AMP AMP
SENSOR
RFILT RFILT 32kΩ 32kΩ
COM ST YOUT XOUT
CY CX
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 rights of third parties that may result from its use.
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Specifications subject to change without notice. No license is granted by implication
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Page Summary Contents For ANALOG DEVICES ADXL322 Data Sheet Manual
Manual Details
| Brand | Analog Devices |
|---|---|
| Pages | 16 |
| File Size | 362.27 KB |
| Published | June 16, 2026 |
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Frequently Asked Questions
What is the ADXL322 sensor's resolution?
It offers a 2 mg resolution at 60 Hz.
How can I adjust the bandwidth of the accelerometer?
You select the bandwidth using capacitors CX and CY attached to the XOUT and YOUT pins, allowing ranges from 0.5 Hz to 2.5 kHz.
What voltage range does the ADXL322 support for operation?
The sensor supports a wide supply voltage range of 2.4 V to 6 V.
Is this accelerometer suitable for vibration sensing?
Yes, it can measure both dynamic acceleration (vibration) and static acceleration (gravity).
What is the operational size and package type of the ADXL322?
It is a small, thin sensor packaged in a dual-axis 4 mm × 4 mm LFCSP.