Low Offset drift, ±0.5g Dual Axis
Accelerometer with Ratiometric Output
Better than 1 mg resolution
Dual axis accelerometer fabricated on a monolithic CMOS IC
On-chip mixed mode signal processing
No moving parts
50,000 g shock survival rating
±0.4mg/°C offset drift over temperature
3V to 5.25V single supply continuous operation
Small (5mm x 5mm x 2mm) surface mount package
Continuous self test
Custom programmable specifications
Independently axis programmable axes (special order)
Automotive – Vehicle Security/Active Suspension/ABS
Headlight Angle Control/Tilt Sensing
Security – Gas Line/Elevator/Fatigue Sensing
Office Equipment – Computer Peripherals/PDA/Cell
Gaming – Joystick/RF Interface/Menu Selection/Tilt Sensing
White Goods – Spin/Vibration Control
The MXR2999E is a low noise and 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 MXR2999E measures
acceleration with a full-scale range of ±0.5 g and a
sensitivity of 1000mV/g @5Vat 25°C. It can measure
both dynamic acceleration (e.g., vibration) and static
acceleration (e.g., gravity). The MXR2999E 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 up to
50,000 g, leading to significantly lower failure rates and
lower loss due to handling during assembly.
Offset & Gain
MXR2999E FUNCTIONAL BLOCK DIAGRAM
The MXR2999E provides two ratiometric analog outputs.
The typical noise floor is 0.2 mg/ Hz allowing signals
below 1mg to be resolved at 1 Hz bandwidth. The 3dB
rolloff of the device occurs at 17 Hz. The offset drift over
temperature is ±0.4mg/°C. The MXR2999E is available in
a small surface mount package (5mm x 5mm x 2mm). It is
hermetically sealed and is operational over a -40°C to
+105°C temperature range. It also contains an on-chip
temperature sensor and a bandgap voltage reference.
Due to the standard CMOS structure of the MXR2999E,
additional circuitry can easily be incorporated into custom
versions for high volume applications. Contact the factory
for more information.
Information furnished by MEMSIC is believed to be accurate and reliable.
However, no responsibility is assumed by MEMSIC for its use, nor for any
infringements of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or
patent rights of MEMSIC.
One Technology Drive Suite 325,Andover MA01810,USA
Tel: +1 978 738 0900
Fax: +1 978 738 0196
MEMSIC MXR2999E Rev.G
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