The typical ultralow noise density (26μg/√Hz) in the MEMS accelerometers supports excellent resolution. The wide bandwidth (DC to 10kHz within 3dB flatness) enables tracking of key vibration signatures on many machine platforms.
The signal processing includes high speed data sampling (220kSPS), 4096 time sample record lengths, filtering, windowing, fast Fourier transform (FFT), user configurable spectral or time statistic alarms, and error flags. The serial peripheral interface (SPI) provides access to a register structure that contains the vibration data and a wide range of user configurable functions.
The ADcmXL3021 is offered in a 23.7mm × 27.0mm × 12.4mm aluminum package with four mounting flanges to support installation with standard machine screws. This package provides consistent mechanical coupling to the core sensors over a broad frequency range. The electrical interface is through a 14-pin connector on a 36mm flexible cable, which enables a wide range of location and orientation options for system mating connectors.
The ADcmXL3021 requires only a single, 3.3V power supply and supports an operating temperature range of -40°C to +105°C.