panditabupesh
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Toronto
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Hello Though the paper uses terms like precision and linearity for N, but I think it means same as accuracy. For example let us consider an 8-bit two-step (or subranging) ADC, and we are extracting 4-bit MSBs and 4-LSBs in two steps. Without digital-error correction, even though we are extracting only 4-bit MSBs (resolution n= 4) the DAC ( a resistance ladder etc ) involved will need to be 8-bit accurate (linearity N = 8). But, for a single-step 8-bit ADC, e.g flash, the resolution and accuracy will be same and equal to 8-bits.
Johns & Martin spend a couple of pages, section 13.5, on this topic.
bye Bupesh
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