GENERAL DESCRIPTION
The ADIS16228 iSensor® is a complete vibration sensing system that combines triaxial acceleration sensing with advanced time domain and frequency domain signal processing. Time domain signal processing includes a programmable decimation filter and selectable windowing function. Frequency domain processing includes a 512-point, real-valued FFT for each axis, along with FFT averaging, which reduces the noise floor variation for finer resolution. The 14-record FFT storage system offers users the ability to track changes over time and capture FFTs with multiple decimation filter settings.

FEATURES
   Frequency domain triaxial vibration sensor
   Flat frequency response up to 5 kHz
   Digital acceleration data, ±18 g measurement range
      Digital range settings: 0 g to 1 g/5 g/10 g/20 g
   Real-time sample mode: 20.48 kSPS, single-axis
   Capture sample modes: 20.48 kSPS, three axes
      Trigger modes: SPI, timer, external
      Programmable decimation filter, 11 rate settings
      Multirecord capture for selected filter settings
      Manual capture mode for time domain data collection
   FFT, 512-point, real valued, all three axes (x, y, z)
      3 windowing options: rectangular, Hanning, flat top
      Programmable FFT averaging: up to 255 averages
   Storage: 14 FFT records on all three axes (x, y, z)
   Programmable alarms, 6 spectral bands
      2-level settings for warning and fault definition
      Adjustable response delay to reduce false alarms
   Internal self-test with status flags
   Digital temperature and power supply measurements
   2 auxiliary digital I/Os
   SPI-compatible serial interface
   Identification registers: serial number, device ID, user ID
   Single-supply operation: 3.0 V to 3.6 V
   Operating temperature range: −40°C to +125°C
   15 mm × 24 mm × 15 mm aluminum package, flex connector

APPLICATIONS
     Vibration analysis
     Condition monitoring
     Machine health
     Instrumentation, diagnostics
     Safety shutoff sensing