Effect of bit-threshold errors on the harmonic and intermodulationperformance of successive approximation A/D converters

A simple approach is described for predicting the harmonic and intermodulation performance of a real successive approximation analog-to-digital converter (ADC) with bit-threshold errors. The real ADC characteristic is split into an ideal staircase characteristic, representing the ideal ADC character...

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محفوظ في:
التفاصيل البيبلوغرافية
المؤلف الرئيسي: Abuelma’atti, M.T. (author)
مؤلفون آخرون: unknown (author)
التنسيق: article
منشور في: 1993
الموضوعات:
الوصول للمادة أونلاين:https://eprints.kfupm.edu.sa/id/eprint/14079/1/14079_1.pdf
https://eprints.kfupm.edu.sa/id/eprint/14079/2/14079_2.doc
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الوصف
الملخص:A simple approach is described for predicting the harmonic and intermodulation performance of a real successive approximation analog-to-digital converter (ADC) with bit-threshold errors. The real ADC characteristic is split into an ideal staircase characteristic, representing the ideal ADC characteristic, minus a train of pulses, representing the bit-threshold errors. Series expressions are obtained for the output spectra of the real ADC excited by a multicarrier input signal with arbitrary amplitudes. The special case of two equal-amplitude carriers is considered in detail, and analytical expressions are obtained for the amplitudes of the harmonic and intermodulation products in terms of the individual bit-threshold errors. The feasibility of minimizing the amplitudes of the intermodulation products is explored