| 摘要 |
A method and system for converting a plurality of input signals (20, 30) being indicative of a signal to be a digital output (50) including: setting a plurality of codes (62, 72) each being indicative of a corresponding reference level; and, for each one of the codes, converting (DA1+...DA4+) the one code to a first analog signal, and summing (80) the first analog signal with a first of the input signals (20) to provide a first summed signal; complementing (110) the one of code to provide a complemented code, converting (DA1-...DA4-) the complemented code to a second analog signal; summing (90) the second analog signal with a second of the input signals (30) to provide a second summed signal corresponding to the first summed signal. The corresponding first and second summed signals are compared (10) to provide a comparison signal. At least a portion of the digital output is set according to the comparison signal.
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