| 摘要 |
Analog-to-digital converter (ADC) structures and methods are provided that reduce an initial converter nonlinearity by introducing an inverse nonlinearity into the converter's response that is substantially the inverse of the initial converter nonlinearity. In a pipelined ADC embodiment, for example,, upstream converter stages are selected that generate an upstream digital code which defines sufficient upstream code words to designate respective segments of the inverse nonlinearity. In response to each of the upstream code words, the conversion gain of the remaining downstream converter stages is then sufficiently adjusted to insert the inverse nonlinearity into the converter response.
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