Pressure
Maximum Ratings
Table 2. Maximum Ratings(1)
Rating
Symbol
Value
Unit
Maximum Pressure (P1 > P2)
Storage Temperature
PMAX
400
kPa
TSTG
TA
-40 to +125
-40 to +125
°C
°C
Operating Temperature
1. Exposure beyond the specified limits may cause permanent damage or degradation to the device.
Voltage Output vs. Applied Differential
The differential voltage output of the sensor is directly
proportional to the differential pressure applied.
The absolute sensor has a built-in reference vacuum. The
output voltage will decrease as vacuum, relative to ambient,
is drawn on the pressure (P1) side.
(P1) side relative to the vacuum (P2) side. Similarly, output
voltage increases as increasing vacuum is applied to the
vacuum (P2) side relative to the pressure (P1) side.
Figure 1 illustrates a block diagram of the internal circuitry
on the stand-alone pressure sensor chip.
The output voltage of the differential or gauge sensor
increases with increasing pressure applied to the pressure
VS
3
Thin Film
X-ducer
Sensing
Element
2
4
Temperature
Compensation
and
+ VOUT
- VOUT
Calibration
Circuitry
1
GND
Figure 1. Temperature Compensated Pressure Sensor Schematic
MPX2102
Sensors
Freescale Semiconductor, Inc.
4