ADXL345

三轴， ± 2/4 /8 / 16克数字加速度计 Three-Axis, ±2/4/8/16g Digital Accelerometer

Product Details

The is a small, thin, low 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 a SPI 3- or 4-wire or I2C digital interface.

The ADXL345 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 less than 1.0°.

Several special sensing functions are provided. Activity and inactivity sensing detect the presence or lack of motion and if the acceleration on any axis exceeds a user-set level. Tap sensing detects single and double taps. Free-fall sensing detects if the device is falling. These functions can be mapped to one of two interrupt output pins. An integrated, patent pending 32-level first in, first out FIFO buffer can be used to store data to minimize host processor intervention.

Low power modes enable intelligent motion-based power management with threshold sensing and active acceleration measurement at extremely low power dissipation.

The ADXL345 is supplied in a small, thin, 3 mm × 5 mm × 1 mm, 14-lead, plastic package.

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ADXL345-EP Supports defense and aerospace applications AQEC

### Features and Benefits

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Ultralow power: as low as 23 μA in measurement mode and 0.1 μA in standby mode at VS = 2.5 V typical

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Power consumption scales automatically with bandwidth

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User-selectable resolution

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Fixed 10-bit resolution

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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

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See data sheet for additional features.

ADXL345-EP supports defense and aerospace applications AQEC standard

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Download ADXL345-EP data sheet pdf

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Extended industrial temperature range:  −55°C to +105°C

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Controlled manufacturing baseline

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One assembly/test site

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One fabrication site

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Enhanced product change notification

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Qualification data available on request

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V62/12657 DSCC Drawing Number