Datasheet

MPX2100
Sensors
2 Freescale Semiconductor
Pressure
Figure 1 shows a block diagram of the internal circuitry on the stand-alone pressure sensor chip.
Figure 1. Temperature Compensated Pressure Sensor Schematic
Voltage Output versus Applied Differential Pressure
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.
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).
V
S
3
Sensing
Element
Thin Film
Temperature
Compensation
and Calibration
Circuitry
2
4
+V
OUT
-V
OUT
1
GND