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?