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PDF MXA6500M Data sheet ( Hoja de datos )
| Número de pieza | MXA6500M | |
| Descripción | Dual Axis Accelerometer | |
| Fabricantes | Memsic | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MXA6500M (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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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
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.
TEMP
VDD
TP
Internal
Oscillator
VREF
CLK CLK
PD
Heater
Control
Coarse Fine Gain
Gain Adj. Adj.
Temperature
Sensor
TEMP
Vref
No
Connection
X aixs
Temp
Comp.
A/D
D/A
Low Pass
Filter
Buf.
CLK CLK TEMP CLK
Coarse Fine Gain
Gain Adj. Adj.
CLK
Vref
CLK
Xout
No
Connection
Y aixs
Acceleration
Sensor
Temp
Comp.
A/D
D/A
Low Pass
Filter
Buf.
CLK CLKTEMP CLK CLK CLK
GND
Yout
MXA6500G/M FUNCTIONAL BLOCK DIAGRAM
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
MEMSIC MXA6500G/M Rev.B
Page 1 of 6
3/22/2005
www.DataSheet.in
1 page  
possible, and surface mount capacitor is preferred. For
typical applications, the capacitor can be ceramic 0.1 µF.
Power supply noise rejection
PCB LAYOUT AND FABRICATION SUGGESTIONS
1. It is best to connect a 0.1uF capacitor directly across
VDD and COM pin.
2. Robust low inductance ground wiring should be used.
3. Care should be taken to ensure there is “thermal
symmetry” on the PCB immediately surrounding the
MEMSIC device and that there is no significant heat
source nearby.
4. A metal ground plane should be added directly beneath
the MEMSIC device. The size of the plane should be
similar to the MEMSIC device’s footprint and be as
thick as possible.
5. Vias can be added symmetrically around the ground
plane. Vias increase thermal isolation of the device
from the rest of the PCB.
MEMSIC MXA6500G/M Rev.B
www.DataSheet.in
Page 5 of 6
3/22/2005
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet MXA6500M.PDF ] | |
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