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Motorola Sensor Device Data
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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 PRESSURE
The 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
SEMICONDUCTOR TECHNICAL DATA
MPX53D
CASE 344
MPX53GP
CASE 344B
0 to 50 kPa (0–7.25 psi)
60 mV FULL SCALE SPAN
(TYPICAL)
NOTE: Pin 1 is the notched pin.
PIN NUMBER
1
2
Gnd
+Vout
3
4
VS
–Vout
SMALL OUTLINE
PACKAGE
MPXV53GC6U
CASE 482A
MPXV53GC7U
CASE 482C
PIN NUMBER
1
2
3
Gnd
+Vout
VS
–Vout
5
6
7
N/C
N/C
N/C
4
8
N/C
UNIBODY PACKAGE
NOTE: Pin 1 is the notched pin.
MPX53DP
CASE 344C
Figure 1. Uncompensated Pressure Sensor Schematic
Sensor
+ Vout
– Vout
+ VS
GND
REV 2
F
Freescale Semiconductor, Inc.
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