Noise-shaped multibit D/A convertor employing unit elements |
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Authors: | Schreier R. Zhang B. |
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Affiliation: | Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR; |
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Abstract: | By appropriately selecting the elements used to form each output sample of a multibit digital-to-analogue convertor, the spectrum of the error caused by element mismatch can be noise-shaped. Simulations indicate that first-order, second-order and bandpass noise-shaping are all possible. The technique enables the use of multibit feedback in delta-sigma A/D and D/A convertors |
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