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Video s3
    Details
    Author(s)
    Display Name
    Asma Mahar
    Affiliation
    Affiliation
    University of Arkansas
    Display Name
    K. Asif Faruque
    Affiliation
    Affiliation
    University of Arkansas
    Display Name
    Satish Shetty
    Affiliation
    Affiliation
    University of Arkansas
    Display Name
    Gregory J. Salamo
    Affiliation
    Affiliation
    University of Arkansas
    Display Name
    H. Alan Mantooth
    Affiliation
    Affiliation
    University of Arkansas
    Abstract

    A high bandwidth readout interface circuit is designed for Hall sensors having a system bandwidth of >40 MHz. This interface circuit is designed to reduce the sensor offset and provide a fast response to any change detected in the magnetic field. Current spinning in combination with chopper stabilization technique is applied to the low-frequency signal to remove offset. In contrast, the high-frequency signal is directly filtered to reject the offset. This solution provides a high bandwidth interface design that allows full sensor bandwidth to be utilized.

    Slides
    • A Fast Interface Circuit Using Multiple Signal Paths for High Bandwidth Hall Sensors (application/pdf)