Characteristic dimensions of the inner silicon plate in the MPX5010DP sensor

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Characteristic dimensions of the inner silicon plate in the MPX5010DP sensor

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jlvassent
Contributor I

Hi,

Does anyone have information on the size (surface and thickness) of the active part of the silicon plate which acts as a membrane for pressure measurement?

Thanks

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JozefKozon
NXP TechSupport
NXP TechSupport

Hi Jean-Luc,

we have an application note dealing with output noise and recommended techniques to mitigate the output oscillations. Please find it attached. 

With Best Regards,

Jozef

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JozefKozon
NXP TechSupport
NXP TechSupport

Hi Jean-Luc,

I have checked available documents and older cases. Unfortunately I couldn't the requested MPX5010DP inner silicone plate size. We do not have this value.

I apologize for inconvenience. 

With Best Regards,

Jozef

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jlvassent
Contributor I

Thanks Josef.

I test the response of this sensor to a pressure step and I observe damped oscillations of the output voltage. The frequency is about 100 Hz. This frequency seems a little low  when I compare it to the natural frequency of a silicon membrane of 1mm^2 x 0.001mm which is of the order of 2500 Hz. Have you ever known of such oscillations?

Sincerely,

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JozefKozon
NXP TechSupport
NXP TechSupport

Hi Jean-Luc,

we have an application note dealing with output noise and recommended techniques to mitigate the output oscillations. Please find it attached. 

With Best Regards,

Jozef

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