Low Noise, Wide Bandwidth, MEMS Accelerometer

The ADXL1004 delivers ultralow noise density over an extended frequency range and is optimized for bearing fault detection and diagnostics. The ADXL1004 has typical noise density of 125 μg/√Hz across the linear frequency range. Microelectronicmechanical systems (MEMS) accelerometers have stable and repeatable sensitivity, and are immune to external shocks up to 10,000 g.

The integrated signal conditioning electronics enable such features as full electrostatic self test (ST) and an overrange (OR) indicator, useful for embedded applications. With low power and single-supply operation of 3.3 V to 5.25 V, the ADXL1004 also enables wireless sensing product design. The ADXL1004 is available in a 5 mm × 5 mm × 1.80 mm LFCSP package, and operates over the −40°C to +125°C temperature range.

Applications

* Condition monitoring

* Predictive maintenance

* Asset health

* Test and measurement

* Health usage monitoring system (HUMSs)

* Acoustic emissions

* Single, in plane axis accelerometer with analog output

* Full-scale range: ±500 g

* Linear frequency response range: dc to 24 kHz typical (3 dB point)

* Resonant frequency: 45 kHz typical

* Ultralow noise density: 125 μg/√Hz

* Overrange sensing plus dc coupling allows fast recovery time

* Complete electromechanical self test

* Sensitivity performance

* Sensitivity stability over temperature within 5%

* Linearity to ±0.25% of full-scale range

* Cross axis sensitivity: ±1.5% (Z-axis acceleration affect on X-axis; Y-axis acceleration affect on X-axis)