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Motorola Sensor Device Data
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SUMMARY
Several washing machine solutions were examined. The
MPX10/12 solution can be expensive in terms of additional
support circuitry and the added time and labor involved during
the calibration procedure. The MPX2010 is good alternative
for high volume manufacturing because is already calibrated.
With this solution, however, the system amplifier design must
be chosen and designed carefully in order to minimize the sys-
tem error. This is a consideration when deciding to implement
a high accuracy solution with the MPX2010 because the cost
of the system will go up.
The MPXV4006G solution is geared towards high volume
manufacturing because trimming, compensation and amplifi-
cation is already on board. Besides the system simplicity and
using less component, the resolution and overall accuracy of
this solution is better than the MPX2010 solution. In some
cases, less components can actually improve the reliability
and manufacturability the system.
REFERENCES
[1] Benchmark of Washing Machine Mechanical Sensor,
Jack Rondoni, Motorola Internal Document.
[2] Mechanical Sensor Characterization, Ador Reodique,
Motorola Internal Document.
[3] AN1551 Low Pressure Sensing with the MPX2010
Pressure Sensor, Jeff Baum, Motorola Application Note.
[4] AN1636 Implementing Auto–Zero for Integrated Pressure
Sensors, Ador Reodique, Motorola Application Note.
[5] AN1556 Designing Sensor Performance Specifications
for MCU–based Systems, Eric Jacobsen and Jeff Baum,
Motorola Application Note.
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