STMicroelectronics MEMS Accelerometers

STMicroelectronics MEMS Accelerometers include analog and digital sensors featuring up to ±400g acceleration full scale and from 1.71V to 3.6V supply voltage. Accelerometers are an ideal choice for ultra-low-power applications and have advanced power-saving features. Features include low-power mode, auto wake-up function, and FIFO buffer that can be used to store data. This reduces the host processor loading and system power consumption.

ST accelerometers are suitable for handheld portable applications like mobile phones and PDAs, or any other application where low power consumption and reduced package size are required. A new generation of accelerometers make a significant step forward in miniaturization, with packages sized only 2x2x1mm, available with both 14 and 12-leads pinout.

ST's portfolio also includes accelerometers for automotive applications, like the AIS32x family, with extended temperature range and AEC-Q100 qualified. The IISxxx products are part of ST's longevity program and will stay in production for ten years from the date of introduction.

Features

Analog Accelerometer Features
- Selectable full scale: ±2g/±6g
- 0.5mA current consumption in normal mode
- 1µA current consumption in power-down mode
- Bandwidth up to 2kHz
- Resolution better than 0.5mg @ 100H
- Ultra-high stability over temperature: 0.2mg/°C
- Extended operating temperature range: -40°C +85°C
- Embedded self-test
- High shock survivability: 10,000g for 0.1ms

Digital Accelerometer Features
- Digital SPI, I²C interfaces - user selectable
- Selectable full scale: ±2g/±4g/±8g
- High shock survivability: 10,000g for 0.1ms
- Smart embedded features
- Two independent fully programmable interrupt signals
- Embedded free-fall and wake-up functions
- Click and double click recognition
- Direction detection
- Sleep to wake function
- Embedded high-pass filter