MXR7210G Datasheet, PDF (1/8 Pages) List of Unclassifed Manufacturers – Low Cost, Low Noise ±10 g Dual Axis Accelerometer with Ratiometric Analog Outputs

Low Cost, Low Noise
±10 g Dual Axis Accelerometer with
Ratiometric Analog Outputs
MXR7210G/M
FEATURES
Low cost
Resolution better than 1milli-g at 1Hz
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
Computer Peripherals
Information Appliances
Alarms and Motion Detectors
Disk Drives
Vehicle Security
GENERAL DESCRIPTION
The MXR7210G/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 MXR7210G/M measures acceleration with
a full-scale range of ±10 g and a sensitivity of 100mV/g
@5V at 25°C. It can measure both dynamic acceleration (e.g.
vibration) and static acceleration (e.g. gravity). The
MXR7210G/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.
MXR7210G/M FUNCTIONAL BLOCK DIAGRAM
The MXR7210G/M provides two ratiometric analog outputs
that are proportional to 50% of the supply at zero g
acceleration.
The typical noise floor is 0.4 mg/ Hz allowing signals
below 1milli-g to be resolved at 1 Hz bandwidth. The
MXR7210G/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 MXR7210G/M Rev.F
Page 1 of 8
3/24/2005