Maximum Ratings
Table 2. Maximum Ratings(1)
Rating
Symbol
Value
Maximum Pressure (P1 > P2)
Burst Pressure (P1 > P2)
Storage Temperature
Operating Temperature
PMAX
PBURST
TSTG
TA
75
100
–40 to +125
–40 to +125
1. Exposure beyond the specified limits may cause permanent damage or degradation to the device.
Figure 1 shows a block diagram of the internal circuitry
integrated on a pressure sensor chip.
Pressure
Unit
kPa
kPa
°C
°C
3 +VS
Sensing
Element
1
GND
2
+VOUT
4
–VOUT
Figure 1. Uncompensated Pressure Sensor Schematic
Voltage Output versus Applied Differential Pressure
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).
Sensors
Freescale Semiconductor
MPX12
3