TABLE OF CONTENTS This book has two main parts: a theoretical study and practical realizations. The achievement of the theoretical study is a complete digital compensation methodology. This methodology is successfully used in three totally different practical implementations.
To summarize and conclude this book, the highlights, main contributions and further development perspectives are presented and discussed.
In the first part of this book, the state of the art and a systematic analysis of the existing compensation techniques are presented. The chopper and autozero techniques are compared and their advantages and drawbacks discussed. In particular, their compatibility with sampled and continuous-time analog circuits is examined and classificated.
Then, a complete review of sub-binary converters is proposed. The M/ 2 + M structure is thoroughly analyzed, from circuit theory to design issues, including layout. The different structures of sub-binary converters are compared.
A complete digital compensation methodology based on very low-area sub-binary M/2 +M current-mode converters and successive approximations algorithms is then proposed. The systematic approach describes the compensation of circuit imperfections from their detection to their compensation. A simulation tool is introduced, allowing the automatic and transparent simulation of analog circuits that include digital compensation blocks. By using two M/2 +M and a special current mirror, an up/down DAC for digital compensation of continuous-time systems is also presented.
Three applications of the compensation methodology and circuits are then proposed. Two additional calibration and radix conversion algorithms allow the use of a M/2 +M converter as a
