STMicro 3-Axis Gyroscope Gets Automotive Certification

Leading MEMS vendor STMicroelectronics has introduced a new 3-axis digital gyroscope that meets the stringent requirements of AEC-Q100, an industry-standard qualification for automotive integrated circuits.

Established by the Automotive Electronics Council (AEC), AEC Q100 details a set of stress tests and defines the qualification requirements for integrated circuits in automotive applications.

ST’s A3G4250D gyroscope measures angular rates up to ±250dps (degree per second). An on-chip IC interface converts the angular-motion data into a 16-bit digital bit stream that is transmitted with high reliability to a dedicated microcontroller chip through a standard SPI or I(2)C protocol. The device provides two output lines (interrupt and data ready) and four user-selectable output data rates.

The 3V single-supply sensor integrates power-down and sleep modes and an embedded FIFO (first-in first-out) memory block for smarter power management. The A3G4250D embeds an 8-bit temperature sensor and operates within an extended temperature range from -40 to 85 degrees C. The device is robust to electromagnetic interference and withstands shocks up to 10,000g.

Samples of ST’s A3G4250D are available and volume production will start by the second quarter of 2012. Unit pricing is $6 for volumes in the range of 1,000 pieces, said STMicro.

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