Low Cost
±5 g Tri Axis Accelerometer with
Ratiometric Outputs
MXR9150G/M
FEATURES
Low cost
RoHS compliant
Xout
Gain Adjust
Gain Adjust
Gain Adjust
Temp
Comp
A/D
A/D
A/D
D/A
D/A
D/A
X
Sensor
LPF
LPF
LPF
Resolution better than 1 mg
Tri-axis accelerometer in a single package.
On chip mixed signal processing
No moving parts
Temp
Comp
Y
Sensor
Yout
Zout
No loose particle issues
Temp
Comp
Z
>50,000 g shock survival rating
SMT package: 7mm X 7mm X 1.8mm
2.7V to 3.6V single supply continuous operation
No adjusting external components needed
Sensor
VSA1
VSA2
Reference
Digital Interface
Clock
APPLICATIONS
GPS – Electronic Compass Tilt Correction/Navigation
Consumer – LCD projectors, pedometers, blood pressure
monitor, digital cameras/MP3 players
VDD2
VDD1
VDD3
DI1
SCK1
DI2
SCK2
FUNCTIONAL BLOCK DIAGRAM
Information Appliances – Computer
Peripherals/PDA’s/Mouse Smart Pens/Cell Phones
Gaming – Joystick/RF Interface/Menu Selection/Tilt
Sensing
The MXR9150G/M provides three ratiometric analog
outputs that are set to 50% of the power supply voltage at
zero g.
Security – Gas Line/Elevator/Fatigue Sensing
GENERAL DESCRIPTION
The MXR9150G/M is a low cost, tri axis accelerometer
fabricated on a standard, submicron CMOS process. It is a
complete sensing system with on-chip mixed signal
processing. The MXR9150G/M measures acceleration with
a full-scale range of ±5.0 g and a sensitivity of 150mV/g
@3.0V at 25°C. It can measure both dynamic acceleration
(e.g. vibration) and static acceleration (e.g. gravity). The
MXR9150G/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 PCB assembly and at customer field
application.
The Max. noise floor is 1 mg/ Hz allowing signals below
1mg to be resolved at 1 Hz bandwidth. The MXR9150G/M
is packaged in a hermetically sealed, surface mount LCC
16pins package (7 mm x 7 mm x 1.8 mm height) and is
operational over a -40°C to +85°C (M) and 0°C to +70°C (G)
temperature range.
I2C fast mode interface is soon available in the next generation
chip.
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.
One Technology Drive Suite 325,Andover MA01810,USA
Tel: +1 978 738 0900
www.memsic.com
Fax: +1 978 738 0196
MEMSIC MXR9150G/M Rev.D
Page 1 of 8
2/27/2007
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