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GENERAL DESCRIPTION

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 peripheral 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 offset bias correction, sample rate, sleep mode, peak detection, and event capture.

FEATURES

Digital triple-axis accelerometer, ±19 g

Programmable event recorder

Internal and external trigger inputs

Automatic event data storage in nonvolatile flash

Low power operation

Sleep mode current: 100 μA

Continuous sampling current: 1 mA, 1 kSPS

Wake-up and record function

External trigger input and SPI trigger command

Peak acceleration sample-and-hold

Peak XYZ sum-of-squares output

1600 Hz (X, Y) and 550 Hz (Z) sensor bandwidth

Digitally controlled sample rate, up to 4096 SPS

Programmable alarms for condition monitoring

Programmable digital input/output lines

Data-ready output and alarm indicator output

Real-time clock

Digitally activated self-test

Embedded temperature sensor

Programmable power management

SPI-compatible serial interface

Auxiliary 10-bit ADC input

Two analog trigger inputs with programmable threshold

Single-supply operation: 2.4 V to 3.6 V

>4000 g powered shock survivability

APPLICATIONS

Crash or impact detection

Condition monitoring of valuable goods

Safety, shut-off sensing

Impact event recording

Security sensing and tamper detection