BiCMOS current cell and switch for digital-to-analog converters |
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| Authors: | Leung B |
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| Affiliation: | Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont.; |
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| Abstract: | A BiCMOS current cell and current switch used in a current steering DAC are proposed. The BiCMOS self-calibrated current cell offers higher output resistance and smaller minimum voltage and shows up to a factor of 2 improvement in accuracy in simulations. The BiCMOS current switch has no base current error and achieves close to a factor of 2 improvement in simulated switching speed when compared to a MOS switch |
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