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參數(shù)資料
| 型號(hào)： | MPX7200GVSX |
| 廠商： | Motorola, Inc. |
| 英文描述： | 0 to 200 kPa (0 to 29 psi) 40 mV FULL SCALE SPAN (TYPICAL) |
| 中文描述： | 0至200千帕（0至29 PSI）的全尺寸為40 mV跨度（典型） |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大小： | 179K |
| 代理商： | MPX7200GVSX |
1
Motorola, Inc. 1997
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The new MPX7200 series pressure sensor incorporates all the innovative features of
Motorola’s MPX2000 series family including the patented, single piezoresistive strain
gauge (X–ducer) and on–chip temperature compensation and calibration. In addition, the
MPX7200 series has a high input impedance of typically 10 k
for those portable, low
power and battery–operated applications. This device is suitable for those systems in
which users must have a dependable, accurate pressure sensor that will not consume
significant power. The MPX7200 series device is a logical and economical choice for
applications such as portable medical instrumentation, remote sensing systems with
4–20 mAmp transmission and field barometers/altimeters.
Features
Temperature Compensated Over 0
°
C to +85
°
C
Unique Silicon Shear Stress Strain Gauge
Easy to Use Chip Carrier Package Options
Available in Absolute, Differential and Gauge Configurations
Ratiometric to Supply Voltage
±
0.25% Linearity (MPX7200D)
Application Examples
Portable Medical Instrumentation
Field Altimeters
Field Barometers
Figure 1 illustrates a schematic of the internal circuitry on the stand–alone pressure
sensor chip.
VS
Figure 1. Temperature Compensated Pressure Sensor Schematic
3
HIGH
Zin
X–ducer
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 X–ducer 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.
Preferred
devices are Motorola recommended choices for future use and best overall value.
Senseon and X–ducer are trademarks of Motorola, Inc.
REV 3
Order this document
by MPX7200/D
SEMICONDUCTOR TECHNICAL DATA
BASIC CHIP
CARRIER ELEMENT
CASE 344–15, STYLE 1
DIFFERENTIAL
PORT OPTION
CASE 344C–01, STYLE 1
0 to 200 kPa (0 to 29 psi)
40 mV FULL SCALE SPAN
(TYPICAL)
NOTE: Pin 1 is the notched pin.
PIN NUMBER
1
2
Gnd
+Vout
3
4
VS
–Vout
Motorola Preferred Device
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