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
