Products

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.

The programmable event recorder offers two trigger modes. The internal 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, pretrigger data, and data storage. Each event is stored with a header that captures temperature, power supply, and time. Several power management features, including sleep mode and a wake-up function, enable power optimization with respect to specific mechanical system requirements.

• Digital triple-axis accelerometer, ±19 g g powered shock survivability
• Programmable event recorder: Internal and external trigger inputs
• 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 bias correction
• 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...3.6 V
• > 4000 g powered shock survivability

• Crash or impact detection
• Condition monitoring of valuable goods
• Safety, shut-off sensing
• Impact event recording
• Security sensing and tamper detection