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Non-linearity Testing of D/A Converters Applying Walsh Function (Walsh 함수를 적용한 D/A 컨버터의 비선형 시험)

  • Lee, Hae-Ki;Lee, Chun-Mo
    • Proceedings of the KIEE Conference
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    • 2002.06a
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    • pp.161-165
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    • 2002

  • The paper presents a diagnostic tool for analyzing the bit intermodulation in D/A converter. Bit intermodulation cause linearity errors which degrade the performance of the converter. A linear transformation of the Walsh transform of the integrated non-linearity diagram is shown to be sufficient to extract the bit intermodulation terms and their noise sensitivity. Practical applicability of the proposed method is shown by measurement.

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