品牌:ADI模拟器件专营 型号:ADXL346ACCZ 批号:0936+ 封装:LGA16 营销方式:现货 产品性质:热销 处理信号:数模混合信号 制作工艺:混合集成 导电类型:双极型 集成程度:特大规模 规格尺寸:6*6（mm） 工作温度:-40~85（℃） 静态功耗:0.2（mW）

超低功耗、三轴、+/2/4/8/16g数字加速度计

The ADXL346 is a small, thin, ultralow power, 3-axis accelerometer with high resolution (13-bit) measurement at up to ±16g. 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 mg/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

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