![](http://datasheet.mmic.net.cn/280000/MPX2202GVP_datasheet_16098581/MPX2202GVP_189.png)
3–43
Motorola Sensor Device Data
For More Information On This Product,
Go to: www.freescale.com
!
!
The MPX2200 series device is a silicon piezoresistive pressure sensor providing a
highly accurate and linear voltage output — directly proportional to the applied pressure.
The sensor is a single monolithic silicon diaphragm with the strain gauge and a thin–film
resistor network integrated on–chip. The chip is laser trimmed for precise span and
offset calibration and temperature compensation. They are designed for use in
applications such as pump/motor controllers, robotics, level indicators, medical
diagnostics, pressure switching, barometers, altimeters, etc.
Features
Temperature Compensated Over 0
°
C to +85
°
C
±
0.25% Linearity (MPX2200D)
Easy–to–Use Chip Carrier Package Options
Available in Absolute, Differential and Gauge Configurations
Application Examples
Pump/Motor Controllers
Robotics
Level Indicators
Medical Diagnostics
Pressure Switching
Barometers
Altimeters
Figure 1 illustrates a block diagram of the internal circuitry on the stand–alone
pressure sensor chip.
VS
3
Figure 1. Temperature Compensated Pressure Sensor Schematic
SENSING
ELEMENT
THIN FILM
TEMPERATURE
COMPENSATION
AND
CALIBRATION
CIRCUITRY
2
4
Vout+
Vout–
1
GND
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 (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.
SEMICONDUCTOR TECHNICAL DATA
0 to 200 kPa (0 to 29 psi)
40 mV FULL SCALE SPAN
(TYPICAL)
UNIBODY PACKAGE
MPX2200AP/GP
CASE 344B
MPX2200GVP
CASE 344D
MPX2200A/D
CASE 344
MPX2200DP
CASE 344C
PIN NUMBER
1
2
Gnd
+Vout
3
4
VS
–Vout
NOTE: Pin 1 is noted by the notch in
the lead.
REV 9
F
Freescale Semiconductor, Inc.
n
.