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PDF MXA2500M Data sheet ( Hoja de datos )
| Número de pieza | MXA2500M | |
| Descripción | Dual Axis Accelerometer | |
| Fabricantes | Memsic | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MXA2500M (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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Improved, Ultra Low Noise ±1.7 g
Dual Axis Accelerometer with
Absolute Outputs
FEATURES
Resolution better than 1 milli-g
Dual axis accelerometer fabricated on a monolithic CMOS IC
On chip mixed mode signal processing
No moving parts
50,000 g shock survival rating
17 Hz bandwidth expandable to >160 Hz
3.0V to 5.25V single supply continuous operation
Continuous self test
Independent axis programmability (special order)
Internal Sensitivity Compensated
APPLICATIONS
Automotive – Vehicle Security/Vehicle Stability control/
Headlight Angle Control/Tilt Sensing
Security – Gas Line/Elevator/Fatigue Sensing/Computer Security
Information Appliances – Computer Peripherals/PDA’s/Mouse
Smart Pens/Cell Phones
Gaming – Joystick/RF Interface/Menu Selection/Tilt Sensing
GPS – Electronic compass tilt correction
Consumer – LCD projectors, pedometers, blood pressure
Monitor, digital cameras
GENERAL DESCRIPTION
The MXA2500G/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 mode signal
processing. The MXA2500G/M measures acceleration
with a full-scale range of ±1.7g and a sensitivity of
500mV/g @5V at 25°C. It can measure both dynamic
acceleration (e.g. vibration) and static acceleration (e.g.
gravity). The MXA2500G/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 of 50,000
g, leading to significantly lower failure rate and lower loss
due to handling during assembly.
MXA2500G/M
Sck
(optional)
Internal
Oscillator
Temperature
Sensor
TOUT
CLK
Voltage
Reference
VREF
Heater
Control
Continous
Self Test
X axis
Low Pass
Filter
AOUTX
Factory Adjust
Offset & Gain
2-AXIS
SENSOR
Y axis
Low Pass
Filter
AOUTY
VDD Gnd VDA
MXA2500G/M FUNCTIONAL BLOCK DIAGRAM
The MXA2500G/M provides two absolute analog outputs.
The typical noise floor is 0.2 mg/ Hz allowing signals
below 1 milli-g to be resolved at 1 Hz bandwidth. The
3dB rolloff of the device occurs at 17 Hz but is expandable
to >160 Hz (reference Application Note AN-00MX-003).
The MXA2500G/M is packaged in a hermetically sealed
LCC surface mount package (5 mm x 5 mm x 2 mm height)
and is operational over a -40°C to 105°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 MXA2500G/M Rev. E
Page 1 of 8
1/19/2005
www.DataSheet.in
1 page  
TYPICAL CHARACTERISTICS OVER TEMPERATURE ( 0°C to 70°C, Vdd = 5V , unless specified)
40%
35%
30%
25%
20%
15%
10%
5%
0%
milli-g / °C
100
80
60
40
20
0
-20
-40
-60
-80
-100
0°C
10°C 20°C 30°C 40°C 50°C 60°C 70°C
Graph 9. Distribution of AOUTX 0g offset over temperature
Graph 12. Examples of AOUTY 0g offset vs. temperature
40%
35%
30%
25%
20%
15%
10%
5%
0%
milli-g / °C
Graph 10. Distribution of AOUTY 0g offset over temperature
8%
6%
4%
2%
0%
-2%
-4%
-6%
-8%
-10%
0°C
10°C 20°C 30°C 40°C 50°C 60°C 70°C
Graph 13. Examples of AOUTX Sensitivity change over temperature
100
80
60
40
20
0
-20
-40
-60
-80
-100
0°C
10°C
20°C 30°C 40°C 50°C 60°C
70°C
Graph 11. Examples of AOUTX 0g offset vs. temperature
8%
6%
4%
2%
0%
-2%
-4%
-6%
-8%
-10%
0°C
10°C 20°C 30°C
40°C 50°C 60°C 70°C
Graph 14. Examples of AOUTY Sensitivity change over temperature
MEMSIC MXA2500G/M Rev. E
www.DataSheet.in
Page 5 of 8
1/19/2005
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MXA2500M.PDF ] | |
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