MXR7202G Datasheet, PDF (1/8 Pages) List of Unclassifed Manufacturers – Low Cost, Low Noise ±2 g Dual Axis Accelerometer with Ratiometric Analog Outputs

Low Cost, Low Noise
±2 g Dual Axis Accelerometer with
Ratiometric Analog Outputs
MXR7202G/M
FEATURES
Low cost
Resolution better than 1 milli-g
Dual axis accelerometer fabricated on a monolithic
CMOS IC On chip mixed signal processing
No moving parts; No loose particle issues
>50,000 g shock survival rating
5mm X 5mm X 2mm LCC package
2.7V to 5.25V single supply continuous operation
Compensated for sensitivity over temperature
Ultra low initial Zero-g Offset
No adjustment needed outside
APPLICATIONS
Security – Gas Line/Elevator/Fatigue Sensing
Information Appliances – Computer Peripherals/
PDA’s/Mouse Smart Pens/Cell Phones
Gaming – Joystick/RF Interface/Menu Selection/Tilt Sensing
DIAGRAM
GPS – electronic Compass tilt Correction
Consumer – LCD projectors, pedometers, blood pressure
Monitor, digital cameras
GENERAL DESCRIPTION
The MXR7202G/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 signal
processing. The MXR7202G/M measures acceleration with
a full-scale range of ±2g and a sensitivity of 312mV/g @5V
at 25°C. It can measure both dynamic acceleration (e.g.
vibration) and static acceleration (e.g. gravity). The
MXR7202G/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 greater than 50,000 g, leading to
significantly lower failure rate and lower loss due to handling
during assembly and at customer field application.
MXR7202G/M FUNCTIONAL BLOCK
The MXR7202G/M provides two ratiometric analog outputs
that are proportional to 50% of the supply at zero g
acceleration.
The typical noise floor is 0.3 mg/ Hz allowing signals
below 1 milli-g to be resolved at 1 Hz bandwidth. The
MXR7202G/M is packaged in a hermetically sealed LCC
surface mount package (5 mm x 5 mm x 2 mm height) and is
operational over a 0°C to 70°C(G) or a -40°C to +105°C(M)
temperature range.
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.
©MEMSIC, Inc.
800 Turnpike St., Suite 202, North Andover, MA 01845
Tel: [phone]
Fax: [phone]
www.memsic.com
MEMSIC MXR7202G/M Rev.B
Page 1 of 8
3/24/2005