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AN2335 Datasheet(PDF) 1 Page - STMicroelectronics |
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AN2335 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 40 page  October 2006 Rev 2 1/40 AN2335 Application note LIS302DL: 3-Axis - ±2g/±8g digital output ultracompact linear accelerometer Introduction This document is intended to give application notes for the low-voltage 3-axis digital output linear MEMS accelerometer provided in LGA package. The LIS302DL is an ultra compact low-power three axes linear accelerometer that includes a sensing element and an IC interface able to take the information from the sensing element and to provide the measured acceleration to the external world through I2C/SPI serial interface. The sensing element, capable of detecting the acceleration, is manufactured using a dedicated process developed by ST to produce inertial sensors and actuators in silicon. The IC interface instead is manufactured using a CMOS process that allows high level of integration to design a dedicated circuit which is factory trimmed to better match the sensing element characteristics. The LIS302DL has a user selectable full scale of ±2g, ±8g and it is capable of measuring accelerations with an output data rate of 100Hz or 400Hz. A self-test capability allows the user to check the correct operation of the system. The device features two independent highly programmable interrupt sources that can be configured either to generate an inertial wake-up interrupt signal when a programmable acceleration threshold is exceeded along one of the three axes or to detect a free-fall event. Two independent pins can be configured to provide interrupt signals to connected devices. The LIS302DL is available in plastic SMD package and it is specified over a temperature range extending from -40°C to +85°C. The ultra small size and weight of this package make it an ideal choice for handheld portable applications such as cell phones and PDAs or any other application where reduced package size and weight are required. www.st.com |
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