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MPX5100 Voltage pins - Vout, V1, V2, Vex

Question asked by Andrew March on May 1, 2017
Latest reply on May 2, 2017 by David Diaz Marin

Hi there,

I have been trying to test a few MPX5100DP units I received for calculating air flow. With a similar differential sensor I am able to see the expected pressure values. However, I cannot get Vout to change from its base voltage of 185/200mV.

What is the purpose of V1, V2 and Vex and what do they correspond to? I'm sorry to ask, but I could not find an explanation for those pins in the datasheet or various application notes I found.


Thank you for your help.