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MEMS Gyroscopes Enable Accurate Angular Motion Detection

Wed, 11/04/2009 - 9:17am
STMicroelectronics has released thirteen new single- and two-axis gyroscopes. With more than a 50% shrink in volume over previous ST devices, reduced power consumption, and an aggressive price, the company’s new high-performance angular-motion sensors open the way to a wide range of innovative consumer applications, including gesture-controlled gaming and pointing devices, image stabilization in digital video or still cameras, and assisted GPS navigation.

ST’s newest single-axis (yaw) and two-axis (pitch-and-roll, pitch-and-yaw)2[2] MEMS gyroscopes fit in miniature packages of 3x5x1 and 4x5x1 mm3, respectively, addressing the size constraints of today’s and tomorrow’s consumer applications.

Power consumption is another key factor, especially in battery-operated devices. Therefore, ST’s gyroscopes include a power-down mode (when the entire device is switched off) and a sleep mode, in which part of the circuitry is turned off to significantly reduce power consumption while allowing very fast turn-on time and smart power cycling.

The gyroscopes boast excellent stability over time and a wide temperature range (down to 0.02 dps3/°C), eliminating the need for additional temperature compensation in the application. Measurement precision is ensured with a negligible level of output noise (down to 0.01 dps/square root(Hz), and wide bandwidth up to 560 Hz, ensuring high accuracy and repeatability.

ST’s MEMS gyroscope family offers the industry’s widest full-scale range, from 30 to 6,000 dps, covering a broad spectrum of applications that require high resolution and stability over time and temperature.

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