ADXL346 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADXL346
Manufacturer

ADI
ChipWorker Part#

CW181926696
RoHS

Lead free / RoHS Compliant
Description

3-Axis, 【2g/【4g/【8g/【16g Ultralow Power Digital Accelerometer
Documentation

Datasheet

ADXL346 Global Supplier

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ADXL346 Specifications

Attribute	Attribute Value

Part Number	ADXL346
Manufacturer	ADI
ChipWorker Part#	CW181926696
Documentation	Datasheet
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Product Lifecycle Status	Active
RoHS	RoHS Compliant

Product Description

Product Details
The ADXL346 is a small, thin, ultralow power, 3-axis accelerometer with high resolution (13-bit) measurement at up to ±16_g_. Digital output data is formatted as 16-bit twos complement and is accessible through either an SPI (3- or 4-wire) or I2C® digital interface.
The ADXL346 is well suited for mobile device applications. It measures the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock. Its high resolution (4 m_g_/LSB) enables measurement of inclination changes of less than 1.0°.
Several special sensing functions are provided. Activity and inactivity sensing detect the presence or lack of motion by comparing the acceleration on any axis with user-set thresholds. Tap sensing detects single and double taps in any direction. Free-fall sensing detects if the device is falling. Orientation detection is capable of concurrent four- and six-position sensing and a user-selectable interrupt on orientation change for 2D or 3D applications. These functions can be mapped individually to either of two interrupt output pins. An integrated, patent pending memory management system with 32-level first in, first out (FIFO) buffer can be used to store data to minimize host processor activity and lower overall system power consumption.
Low power modes enable intelligent motion-based power management with threshold sensing and active acceleration measurement at extremely low power dissipation.
The ADXL346 is supplied in a small, thin, 3 mm × 3 mm × 0.95 mm, 16-lead, plastic package.
**Applications**
Handsets
Medical instrumentation
Gaming and pointing devices
Industrial instrumentation
Personal navigation devices
Hard disk drive (HDD) protection
### Features and Benefits
Ultralow power: as low as 23 μA in measurement mode and 0.2 μA in standby mode at VS = 2.6 V (typical)
Power consumption scales automatically with bandwidth
User-selectable resolution
Fixed 10-bit resolution
Full resolution, where resolution increases with g range, up to 13-bit resolution at ±16 g (maintaining 4 mg/LSB scale factor in all g ranges)
Patent pending, embedded memory management system with FIFO technology minimizes host processor load
Single tap/double tap detection
Activity/inactivity monitoring
Freefall detection
Concurrent four- and six-position orientation detection
Supply and I/O voltage range:
1.7 V to 2.75 V
SPI (3- and 4-wire) and I2C digital interfaces
Flexible interrupt modes mappable to either interrupt pin
See data sheet for additional features

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- Carefully tested and packaged by ChipWorker
- Vacuum packed
- Anti-static packaging
- Anti-vibration foam
- Income quality control (IQC), 800+ qualified distributors.
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- Decapsulation control
- X-ray inspection
- XRF inspection
- Electrical testing
- Surface testing

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