MXR7311GL Datasheet, PDF (1/7 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
MXR7311GL
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; >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
Tilt and motion sensing in cost-sensitive applications
Smart handheld devices
Computer security
Input devices
Pedometers and activity monitors
Gaming controllers
Toys and entertainment products
GENERAL DESCRIPTION
The MXR7311GL 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 MXR7311GL measures acceleration with a
full-scale range of ±2 g and a sensitivity of 167mV/g @3V.
It can measure both dynamic acceleration (e.g. vibration) and
static acceleration (e.g. gravity). The MXR7311GL 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.
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.
MXR7311GL FUNCTIONAL BLOCK DIAGRAM
The MXR7311GL 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
MXR7311GL 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 temperature range.
MEMSIC, Inc.
800 Turnpike St., Suite 202, North Andover, MA 01845
Tel: [phone]
Fax: [phone]
www.memsic.com
MEMSIC MXR7311GL Rev.B
Page 1 of 1
2004.03.15