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By Rich Handley

Murata Americas Releases Three-Axis MEMS Accelerometers

Murata Americas has announced the availability of its SCA3300 series three-axis MEMS accelerometer, which is aimed at a range of industrial and automotive applications. Measuring 7.6 millimeters 8.6 by millimeters by 3.3 millimeters, this surface-mount sensor offers several measurement ranges of 1.5, 3 or 6g, and features less than 10mg offset stability. It provides MEMS sensor characteristics with a non-linearity of 0.1 percent and noise density of 37 ug/√Hz, as well as an operating temperature range of -40 degrees to +125 degrees Celsius.

Functions for the SCA3300 include leveling and alignment systems, inertia measurement units for heavy machinery, navigation systems, automatic guided vehicles (AGV), and construction and surveying tools. It is suitable for high-accuracy automotive inertia sensing, the company indicates. Specific examples include autonomous driving (ADAS) and intelligent transmission control that can be enabled by sensors.

Murata Americas' SCA3300 series
This product is packaged in a pre-molded, dual flat lead SMD housing, operates from a 3.3 VDC supply, and consumes only 1 mA during normal operation. This makes it suitable for battery-powered applications, according to the company. For example, in its low power mode, consumption drops to approximately 0.5 mA. Communication with the host application is via an industry-standard SPI interface.

The SCA3300 also meets the automotive AEC-Q100-quality standard. Furthermore, it provides continuous failsafe functions and flags for diagnostics. These include monitoring internal reference signals, techniques for verifying communication, signal saturation and over-range monitoring.

"Murata constantly strives to develop solutions that enable the industrial and automotive to reach new levels," said Deryl Kimbro, Murata Americas' general manager of sensor products, in a prepared statement. "The SCA3300 series demonstrates our technological, material, and design expertise." An evaluation board is available that incorporates a Java-based GUI to graph sensor output, data logging and data-rate calculations.

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