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TDC1011: Request for solutions that can interface with piezo disc sensors

Jonathan Geronga
Expert 7930 points
Part Number: TDC1011

Hi Team,

I would like to get your help with this request of the customer for their application.

They are working on a piezo that measures the plantar pressure i.e it measures the pressure at different points on the foot of the person and they are looking for solutions that interface the piezoelectric sensor. Since piezo can output large amplitude (in volts), they need a solution to interface it with the microcontroller.

They've gone through this document below and since the piezo sensors give an output of +-100 V in their application, does the solution might have from TI shall include this?
https://www.ti.com/lit/an/sloa033a/sloa033a.pdf 

  • 0
    TI__Expert 3450 points

    Hi Jonathan,

    Unfortunately I don't think the TDC1011 would be a good fit. It was designed for ultrasonic time of flight applications where the transducer is excited to transmit an ultrasonic pulse and then receive the reflected pulse. Further, the TDC1011 is not meant to receive signals in the 10s or 100s of volts. 

    I recommend trying the amplifiers forum.

    Regards,

    Gabriel