MPS-150A Datasheet, PDF (4/5 Pages) JL World Company Limited. – Uncompensated, Absolute Pressure Sensor

1907 Westlands Centre, 20 Westlands Road, Quarry Bay, Hong Kong
Tel : [phone]
Fax : [phone]
Email : [e-mail]
Website : www.jlworld.com
MPS-150A
Uncompensated, Absolute Pressure
Sensor
Page 4 of 5
060105-A3
9. Accuracy represents the expected deviation of the sensor value from the ideal linear behavior over
temperature and pressure, on fixed mounting configurations after pressure and electrical response times and
warm up periods are taken into account, and include thermal and pressure linearity and hysteresis effects over
the life of the sensor.
10 Offset stability represents the proportion of the deviation in offset (zero pressure output) at fixed temperature
T=25+-5C, over the life of the sensor, and includes the effects of thermal and pressure hysteresis as well as
other sources of drift.
11. Top side pressure application.
12. Resistance is measured by sourcing a constant current of 0.7mA, which represent the typical operating
conditions.
13. TCO, TCR & TCS are tested from 0 Deg C to 50 Deg C, based on a linear approximation.
14. Terminology
a) OFFSET VOLTAGE (@ 25 °C) Output voltage under no-load / no-pressure (vacuum) conditions.
b) OUTPUT SPAN VOLTAGE (@ 25 °C) Difference between rated output voltage at the maximum operating
pressure applied and offset voltage. The range of output change expected over the full range of pressure
changes that can be applied to the device.
c) ZIN (@ 25 °C) Input impedance at no load and ambient pressure conditions
d) ZOUT (@ 25 °C) Output impedance at no load and ambient pressure conditions
e) LINEARITY (@ 25 °C) Linearity is expressed in terms of the deviation from the straight line connecting the no-
pressure (vacuum) condition and rated voltage when the pressure is varied from the no-pressure condition to
the span pressure. It is expressed as deviation (D1) found when the rated voltage is halved as a ratio to full
scale (FS)
f) PRESSURE HYSTERESIS (@25°C) Pressure hysteresis is expressed as difference (D2) between the
response to an increasing pressure in no-load condition and a reducing pressure as a ratio to full scale (FS)
when the pressure is reduced in the no-load condition after the pressure has been increased form the no-load
condition to the rated pressure. In other wards the difference in output voltage before the sensor is subjected to
rated pressure and immediately after reducing from the rated pressure as a ratio to full scale (FS).
g) OFFSET VOLTAGE – TEMPERATURE CHARACTERISTICS. This is the variation in the offset voltage in
response to the change in the ambient temperature. It is expressed as the absolute difference (? 1 or ? 2)
between the offset voltage at 0°C or at 50 °C and offset voltage at 25 °C, which ever is higher, as a ratio to full
scale (FS) |? 1|/FS x 100 or |? 2|/FS x 100, which ever is higher.
h) SENSITIVITY – TEMPERATURE CHARACTERISTICS
i) This is the variation (full scale <FS> variation) in the sensitivity in response to the change in the ambient
temperature. It is expressed as the absolute difference (between FS1 and FS or FS2 and FS) between full
scale (FS1,FS2) at 50 °C and full scale at 0°C (FS) , whichever is higher, as a ratio to full scale(FS) at 25°C
|FS1-FS/FS x 100 or |FS2-FS|/FS x 100, which ever is higher. Measurements on product for binning purposes
are performed at ambient and warm conditions.
Document #: DS-SUPS-MPS150A Rev C