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| The Influence of Sinusoidal Parameters in Evaluation of Effective Bit of ADC Converters by Curve-fit Method |
| LIANG Zhi-guo |
| National Key Laboratory of Science and Technology on Metrology & Calibration, Changcheng Institute of Metrology and Measurement, Beijing 100095, China |
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Abstract Aiming at the evaluation of effective of bit of ADC converters, the influences of sinewave parameters are studied in detailed. Through experiment, one can get the conclusion: the best condition of minimum evaluation error of effective bit is that, 1) the peak to peak amplitude of sinusoidal should be odd number times of least significant bit (LSB), 2) the offset of sinusoidal must be integer times of LSB, 3) the initial phase of sinusoidal can’t influence the evaluation results of effective bit of ADC. when the offset of sinewave is the integer times of LSB adds 0.5LSB, it can make the worst error. This conclusion can be used in evaluation of effective bit of ADC converters.
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Received: 26 August 2015
Published: 28 December 2016
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Corresponding Authors:
Zhi-Guo LIANG
E-mail: lzg304@sina.com
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