MiraMEMS in China offers tri-axis accelerometer

Published:2012/6/7 1:15:00 Author:Ecco From:SeekIC

Founded in 2011, MiraMEMS Sensing Technology Co. Ltd. (Suzhou, China) startup offers three-axis capacitive linear accelerometer part numbered MM3A310. It is composed of a surface micromachined sensor element and an ASIC signal conditioning and interface die. The MM3A310 can be packaged in a 3-mm by 3-mm by 1-mm land grid array.

The sensor element uses a deep reactive ion etch process to protect it from the environment with a hermetically sealed silicon cap. The device is rated over a temperature range of -40 degrees C to +85 degrees C and offers two independent interrupts to simplify various motion detection modes. Standard I2C and SPI interfaces are offered to communicate with the chip with require a supply voltage of between 1.7-V and 3.6-V.

MM3A310 offers a user-selectable full scale of ±2g/ ±4g/ ±8g/ ±16g measurement range with data output rate from 1Hz to 4-kHz with temperature compensation, signal condition, self-test, free fall detection and a 96-entry deep data output FIFO on-chip.

According to MiraMEMS, MM3A310 can be widely used in personal music player user interfaces, mobile phone, pedometer for display orientation and gesture recognition, double-click detection, free-fall detection, vibration monitoring, inclination and tilt sensing.

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