[MEMSIC, Inc.]

GENERAL DESCRIPTION

The MXA2500G/M is a low cost, dual axis accelerometer fabricated on a standard, submicron CMOS process. It is a complete sensing system with on-chip mixed mode signal processing. The MXA2500G/M measures acceleration with a full-scale range of ±1.7g and a sensitivity of 500mV/g @5V at 25°C. It can measure both dynamic acceleration (e.g. vibration) and static acceleration (e.g. gravity). The MXA2500G/M design is based on heat convection and requires no solid proof mass. This eliminates stiction and particle problems associated with competitive devices and provides shock survival of 50,000 g, leading to significantly lower failure rate and lower loss due to handling during assembly.

FEATURES

Resolution better than 1 milli-g

Dual axis accelerometer fabricated on a monolithic CMOS IC

On chip mixed mode signal processing

No moving parts

50,000 g shock survival rating

17 Hz bandwidth expandable to >160 Hz

3.0V to 5.25V single supply continuous operation

Continuous self test

Independent axis programmability (special order)

Internal Sensitivity Compensated

APPLICATIONS

Automotive – Vehicle Security/Vehicle Stability control/ Headlight Angle Control/Tilt Sensing

Security – Gas Line/Elevator/Fatigue Sensing/Computer Security

Information Appliances – Computer Peripherals/PDA’s/Mouse Smart Pens/Cell Phones

Gaming – Joystick/RF Interface/Menu Selection/Tilt Sensing

GPS – Electronic compass tilt correction

Consumer – LCD projectors, pedometers, blood pressure Monitor, digital cameras