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參數(shù)資料
| 型號： | MPX2053GVP |
| 廠商： | MOTOROLA INC |
| 元件分類： | 壓力傳感器 |
| 英文描述： | 50 KPA ON CHIP TEMPERATURE COMPENSATED CALIBRATED SILICON PRESSURE SENSORS |
| 中文描述： | GAGE, PEIZORESISTIVE PRESSURE SENSOR, 0-7.25Psi, 0.4%, 0-40mV, THROUGH HOLE MOUNT |
| 封裝： | UNIBODY PACKAGE-4 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 191K |
| 代理商： | MPX2053GVP |
3
Motorola Sensor Device Data
LINEARITY
Linearity refers to how well a transducer’s output follows
the equation: V
out
= V
off
+ sensitivity x P over the operating
pressure range. There are two basic methods for calculating
nonlinearity: (1) end point straight line fit (see Figure 2) or (2)
a least squares best line fit. While a least squares fit gives
the “best case” linearity error (lower numerical value), the
calculations required are burdensome.
Conversely, an end point fit will give the “worst case” error
(often more desirable in error budget calculations) and the cal-
culations are more straightforward for the user. Motorola’s
specified pressure sensor linearities are based on the end
point straight line method measured at the midrange pressure.
Figure 2. Linearity Specification Comparison
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ON–CHIP TEMPERATURE COMPENSATION and CALIBRATION
Figure 3 shows the minimum, maximum and typical output
characteristics of the MPX2053/MPXV2053G series at 25
°
C.
The output is directly proportional to the differential pressure
and is essentially a straight line.
The effects of temperature on Full–Scale Span and Offset
are very small and are shown under Operating Characteris-
tics.
Figure 3. Output versus Pressure Differential
Figure 4. Cross–Sectional Diagram (not to scale)
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Figure 4 illustrates the differential or gauge configuration
in the basic chip carrier (Case 344). A silicone gel isolates
the die surface and wire bonds from the environment, while
allowing the pressure signal to be transmitted to the silicon
diaphragm.
The MPX2053/MPXV2053G series pressure sensor oper-
ating characteristics and internal reliability and qualification
tests are based on use of dry air as the pressure media. Me-
dia other than dry air may have adverse effects on sensor
performance and long term reliability. Contact the factory for
information regarding media compatibility in your application.
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