MEMSIC MXA6500G/M Rev.B
Page 1 of 6
3/22/2005
Low Cost, Low Noise
±1 g
Dual Axis Accelerometer with
Absolute Analog Outputs
MXA6500G/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; >50,000 g shock survival rating
5mm X 5mm X 1.55mm LCC package
2.7V to 3.6V 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
VDD
VREF
CLK
TP
PD
CLK
CLKTEMP
CLK
CLK
CLK
TEMP
A/D
D/A
CLK
CLK TEMP CLK
CLK
CLK
Temp
Comp.
Temp
Comp.
X aixs
Y aixs
CLK
Heater
Control
TEMP
No
Connection
No
Connection
Xout
Yout
Buf.
Vref
Vref
Low Pass
Filter
A/D
D/A
Temperature
Sensor
Internal
Oscillator
Coarse
Gain Adj.
Fine Gain
Adj.
GND
Acceleration
Sensor
Coarse
Gain Adj.
Fine Gain
Adj.
Low Pass
Filter
Buf.
MXA6500G/M FUNCTIONAL BLOCK DIAGRAM
Toys and entertainment products
GENERAL DESCRIPTION
The MXA6500G/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 MXA6500G/M measures acceleration with
a full-scale range of
±1 g and a sensitivity of 500mV/g @3V
at 25°C. It can measure both dynamic acceleration (e.g.
vibration)
and
static
acceleration
(e.g.
gravity).
The
MXA6500G/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.
The max noise floor is 1 mg/ Hz allowing signals below
1 milli-g to be resolved at 1 Hz bandwidth.
The
MXA6500G/M is packaged in a hermetically sealed LCC
surface mount package (5 mm x 5 mm x 1.55 mm height).
It is operational over a -40°C to 85°C(M) and 0°C to 70°C(G)
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: 978.738.0900
Fax: 978.738.0196
www.memsic.com
