GENERAL DESCRIPTION

The ADIS16220 iSensor® is a digital vibration sensor that combines industry-leading iMEMS® sensing technology with signal processing, data capture, and a convenient serial peripheral interface (SPI). The SPI and data buffer structure provide convenient access to wide-bandwidth sensor data. The 22 kHz sensor resonance and 100.2 kSPS sample rate provide adequate response for most machine-health applications. The averaging/decimating filter provides optimization controls for lower bandwidth applications.

FEATURES

Digital ±70 g accelerometer/vibration sensing

22 kHz sensor resonance

100.2 kSPS sample rate

SPI-compatible serial interface

Programmable data capture function:

3 channels, 1024 samples each

1 accelerometer/2 auxiliary ADCs (AIN1, AIN2)

Manual trigger for user initiation

Automatic trigger for periodic data capture

Event trigger for condition-driven capture

Digital temperature sensor output

Digitally controlled sample rate

Digitally controlled frequency response

2 auxiliary digital I/Os

Digitally activated self-test

Digitally activated low power mode

Serial number and device ID

Single-supply operation: 3.15 V to 3.6 V

Operating temperature range: −40°C to +125°C

9.2 mm × 9.2 mm 16-terminal LGA

APPLICATIONS

Vibration analysis

Shock detection and event capture

Condition monitoring

Machine health

Instrumentation, diagnostics

Safety, shut-off sensing

Security sensing, tamper detection