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MPXV7025GC6U not reaching full range

Question asked by Doug Robertson on Dec 6, 2018

    I am trying to use an MPXV7025GC6U. I am having a problem with the voltage output. I get a steady 2.5V at ambient pressure. Under vacuum, I can get pretty close to 0V. With a positive pressure, I only get a top value of 3.5V.

    How can I get better linearity on the positive pressure side? Could anyone advise a voltage divider or op-amp for this with examples?

 

Thank you

 

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