意法半导体进一步扩大其运动传感器产品阵容，推出功耗极低的数字输出3轴加速计LIS3DH，比市场现有的解决方案减少90%以上的功耗，同时缩小封装面积和提升芯片功能性。
工作电流消耗最低为2μA，这款3x3x1 mm的加速传感器最适合运动感应功能、空间和功耗均受限的应用设计，如手机、遥控器以及游戏机。在±2g/±4g/±8g/±16g全量程范围内，LIS3DH可提供非常精确的测量数据输出，在额定温度和长时间工作下，仍能保持卓越的稳定性。
LIS3DH 加速计芯片内置一个温度传感器和三路模数转换器，可简单地整合陀螺仪等伴随芯片。LIS3DH还可实现多种功能，包括鼠标单击/双击识别、4D/6D方向检测以及省电睡眠到唤醒模式。在睡眠模式下，检测链路保持活动状态，当一个事件发生时，传感器将从睡眠模式唤醒，自动提高输出数据速率。
其它重要特性还包括一个可编程的FIFO（先入先出）存储器模块和两个可编程中断信号输出引脚，可立即向主处理器通知动作检测、单击/双击事件等其它状况。
作为意法半导体最新的MEMS产品，LIS3DH的设计和制造采用意法半导体销售超过7亿支的运动传感器的制程技术。
LIS3DH的软件和引脚与意法半导体LIS331加速计系列兼容，客户可直接换件及轻松升级，进而保护在应用开发上的投资
The LIS3DH is an ultra low-power high performance three axes linear accelerometer belonging to the “nano” family, with digital I2C/SPI serial interface standard output. The device features ultra low-power operational modes that allow advanced power saving and smart embedded functions.
The LIS3DH has dynamically user selectable full scales of ±2g/±4g/±8g/±16g and it is capable of measuring accelerations with output data rates from 1 Hz to 5 kHz. The self-test capability allows the user to check the functioning of the sensor in the final application. The device may be configured to generate interrupt signals by two independent inertial wake-up/free-fall events as well as by the position of the device itself. Thresholds and timing of interrupt generators are programmable by the end user on the fly. The LIS3DH has an integrated 32-level first in, first out (FIFO) buffer allowing the user to store data for host processor intervention reduction. The LIS3DH is available in small thin plastic land grid array package (LGA) and it is guaranteed to operate over an extended temperature range from -40 °C to +85 °C.
Key Features
- Wide supply voltage, 1.71 V to 3.6 V
- Independent IOs supply (1.8 V) and supply voltage compatible
- Ultra low-power mode consumptiondown to 2 μ A
- ±2g/±4g/±8g/±16g dynamically selectable full-scale
- I2C/SPI digital output interface
- 16 bit data output
- 2 independent programmable interrupt generators for free-fall and motion detection
- 6D/4D orientation detection
- Free-fall detection
- Motion detection
- Embedded temperature sensor
- Embedded self-test
- Embedded 96 levels of 16 bit data output FIFO
- 10000 g high shock survivability
- ECOPACK® RoHS and “Green” compliant
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