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MPX53DP
50 KPA UNCOMPENSATED SILICON PRESSURE SENSORS
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The MPX53/MPXV53GC series silicon piezoresistive pressure sensors provide a very
accurate and linear voltage output — directly proportional to the applied pressure. These
standard, low cost, uncompensated sensors permit manufacturers to design and add
their own external temperature compensating and signal conditioning networks.
Compensation techniques are simplified because of the predictability of Motorola’s single
element strain gauge design.
Features Low Cost Patented Silicon Shear Stress Strain Gauge Design Ratiometric to Supply Voltage Easy to Use Chip Carrier Package Options 60 mV Span (Typ) Differential and Gauge Options
Application Examples Air Movement Control Environmental Control Systems Level Indicators Leak Detection Medical Instrumentation Industrial Controls Pneumatic Control Systems Robotics
Figure 1 shows a schematic of the internal circuitry
on the stand–alone pressure sensor chip.
VOLTAGE OUTPUT versus APPLIED DIFFERENTIAL PRESSUREThe differential voltage output of the sensor is directly proportional to the differential
pressure applied.
The output voltage of the differential or gauge sensor increases with increasing
pressure applied to the pressure side (P1) relative to the vacuum side (P2). Similarly,
output voltage increases as increasing vacuum is applied to the vacuum side (P2)
relative to the pressure side (P1).
Replaces MPX50/D
Order this document
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SEMICONDUCTOR TECHNICAL DATANOTE: Pin 1 is the notched pin.
NOTE: Pin 1 is the notched pin.
Figure 1. Uncompensated Pressure Sensor Schematic(376(376
