Integrated vs. compensated pressure sensors?

achilles03

Anyone familiar with the difference between integrated and compensated pressure sensors (specifically freescale's sensors)? Some pressure sensors (like the MPX4080) are catagorized as "integrated", yet they also state they are compensated between -40C to 105C:

cache.freescale.com/files/sensors/doc/data_sheet/MPX4080D.pdf

The "compensated" sensors are also temperature compensated, although it appears they are only compensated down to 0C. Is that the only difference? Anyone have any insight?

Thanks in advance!
Dave

Zuddie

Your mixing your metaphors. Integrated and compensated are not mutually exclusive. So its not a "this or that" situation. Integrated generally means that there are more than one function combined into the sensor. So the sensor could, for instance, detect pressure and temperature. Or, perhaps additional circuitry could be integrated to produce a linear or even a digital output.

The word compensated is usually used along with the parameter that is being compensated. So a device could be supply voltage compensated, gain compensated, temperature compensated etc.

JD

Achilles03,

The temperature compensation is a term that indicates that the sensor will operate and provide accurate readings even in the set environment; which in this case is -40 to 105° C; so throughout the range the sensor will provide accurate kPa readings. The Integrated portion of the datasheet (from what I can tell)·just states that the sensor is a single package, so all the parts needed to operate are included.

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Respectfully,


Joshua Donelson
www.parallax.com