3-Axis Gyroscope in Smallest Package Size

Published:2011/8/31 3:56:00 Author:Amy From:SeekIC

STMicroelectronics, a world leader in providing the semiconductor solutions, has improved its motion-sensor portfolio with the addition of the world’s smallest high performance 3-axis analog gyroscope.



With same robust and field-proven micromachining technology used in the L3G3250A, ST has already used to produce nearly 1.54 billion motion sensors with the aggressive package-shrinking roadmap. It is the first 3-axis gyroscope to satisfy the demand for smaller footprints in next-generation applications. The sensor is a high-performance three-axis analog-output gyroscope built in a package measuring just 3.5x3x1 mm, reducing the footprint from 17.6 mm3 - the current generation in production today - to just 10.5 mm3, a reduction of nearly 40%.

As the resonant frequency beyond the audio bandwidth, the L3G3250A is completely immune to audio noise. Moreover, its advanced design, with a single sensing structure for motion measurement along three orthogonal axes, further improves sensing accuracy and reliability. The combination of high sensing resolution with outstanding immunity to audio noise and vibrations makes motion-sensing user interfaces more realistic in mobile phones, tablets, game consoles, and other smart consumer devices.

The L3G3250A offers two user-selectable full scales – 625 or 2500 dps (degrees per second) – with sensitivities of 2mV/dps and 0.5mV/dps, respectively. The high range allows the device to detect and measure very fast gestures and movements. Other features include an embedded self-test function, a wide supply voltage range (2.4 V to 3.6 V), embedded power-down and sleep modes to optimize power management in battery-operated devices, an embedded low pass filter and a high pass filter reset function, and high shock survivability.

The operation temperature range of this device is over -40°C to 85°C. The device is available in a 3.5x3x1 mm3 LGA-16 ECOPACK® RoHS and “Green” compliant package. Engineering samples are available now and volume production is scheduled for Q4 2011. The device priced at $3.95 per pc for volumes in the range of 1,000 pieces.

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