Ultra High Performance
1.5 g Dual Axis Accelerometer with
I2C Interface
MXC6235xQ
FEATURES
VDD
RoHS compliant
TEMP
I2C Slave, FAST (≤400 KHz) mode interface
1.8V compatible I/O
Internal
VREF
Temperature
Sensor
Oscillator
Ultra Low Noise and initial offset
Embedded Power up/down function
On-chip temperature sensor available
Eight, customer defined 7-bit addresses
2.7 V to 3.6 V single supply continuous operation
Monolithic CMOS IC
No
CLK
CLK
TEMP
Connect
Coarse
Fine Gain
Adj.
Heater
Control
COM
Gain Adj.
No
Connect
Temp
A/D
X aixs
Comp.
CLK TEMP
CLK
CLK
Low power consumption: typically <2 mA @ 3.0 V
Resolution better than 1 mg
SCL
SDA
Coarse
Fine Gain
Adj.
IIC Convertor
Gain Adj.
On chip mixed signal processing
>50,000 g shock survival rating
Low profile LCC package: 5mm X 5mm X 1.55mm
Temp
CLK
Y aixs
A/D
Comp.
Acceleration
Sensor
CLK
CLK
CLK
TEMP
GND
APPLICATIONS
Security – Gas Line, Elevator, Fatigue Sensing
MXC6235xQ FUNCTIONAL BLOCK DIAGRAM
Gaming – Joystick, RF Interface, Menu Selection,
Tilt Sensing
GPS – Electronic Compass Tilt Correction, Dead Reckoning
Consumer – LCD Projectors, Pedometers, Blood Pressure
Monitor, Digital Cameras
Information Appliances – Computer Peripherals, PDA’s,
Mouse Smart Pens, Cell Phones
GENERAL DESCRIPTION
Memsic’s solid state design leads to significantly lower
failure rates in customer applications and lower loss due to
handling during manufacturing and assembly processes
The MXC6235xQ 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 MXC6235xQ measures acceleration with a
full-scale range of 1.5 g and a sensitivity of 512counts/g at
@3.0 V at 25C. It can measure both dynamic acceleration
(e.g. vibration) and static acceleration (e.g. gravity). The
MXC6235xQ design is based on heat convection and
requires no solid proof mass.
The MXC6235xQ provides I2C digital output with 400
KHz. fast mode operation.
Hz
The typical noise floor is 0.13 mg/
allowing signals
below 0.5mg to be resolved at 1 Hz bandwidth.
The MXC6235xQ is packaged in a hermetically sealed, low
profile LCC surface mount package (5 mm x 5 mm x 1.55
This design eliminates the stiction problems associated with
legacy technologies and provides shock survival greater
than 50,000g’s.
mm) and is available in operating temperature ranges of
-
40C to +105C (MXC6235xQB) or -20C to +105C
(MXC6235xQP)
Information furnished by MEMSIC is believed to be accurate and reliable. However,
no responsibility is assumed by MEMSIC for its use, or 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.
www.memsic.com
MEMSIC MXC6235xQ Rev.C
Page 1 of 9
11/30/2010
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