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The ADIS16240 is a fully integrated digital shock detection and recorder system. It combines industry-leading iMEMS® technology with a signal processing solution that optimizes dynamic performance for low-power applications. The triple-axis sensing element enables shock measurement in all directions, eliminating the need for additional sensors and complex mechanical structures for many applications. The digital serial interface (SPI) uses four wires and is compatible with most processor platforms. The SPI interface provides access to sensor data and a set of configuration registers that control such operational parameters as scale factor, offset bias correction, sample rate, sleep mode, peak-detection, and event capture. The programmable event recorder offers two different trigger modes. The internal trigger mode monitors continuous sampled data and triggers the capture based on the user-defined threshold. The external mode uses the two-comparator inputs, and a user-defined threshold to trigger the event captures. This function also provides user-configuration controls for capture length, pre-trigger data and data storage. Each event is stored with a header that captures temperature, power supply and time. Several power management features, including a sleep mode and wake-up function enable power optimization with respect to specific mechanical system requirements. The ADIS16240 is available in a 12 mm × 12 mm laminate-based ball grid array (BGA). |