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