Über den Autor
Pedro Figueiredo received the degrees of Licenciado and Doutor (PhD) in Electrical and Computer Engineering in 1999 and 2006, respectively, from the Instituto Superior Técnico (IST), Lisbon, Portugal. From 1997 to 1999, he was with the Analog and Mixed-Mode Circuits Group in the Institute for Systems and Computer Engineering (INESC), Lisbon, Portugal, where he worked on low-noise logic families and high-speed Analog-to-Digital Converters.
In 1999, he joined Chipidea - Microelectrónica, where he currently leads the group responsible for the design of Analog-to-Digital Converters. His main research interests are in the area of analog and mixed-signal circuits, with emphasis on high-speed data conversion and design automation. He has 10 publications in international journals and conferences.
João Vital received the degrees of Licenciado, Mestre and Doutor (PhD) in Electrical and Computer Engineering in 1986, 1990 and 1994, respectively, all from the Instituto Superior Técnico (IST), Lisboa, Portugal. He is a Co-founder of Chipidea - Microelectronica in 1997, and currently serves as Vice-President of Data Conversion, leading the Data Conversion Solutions Division of Chipidea to provide competitive solutions towards the demanding markets of Broadband Wireless Communications and Video. His main scientific interests are in the area of analog and mixed-signal integrated-circuit design, with a focus on data conversion. He developed research work in the University of Pavia, Italy, in the University of California - Los Angeles, USA, and in the Oregon State University, USA, also in 1990. He has over 50 publications in international journals, book chapters and conferences and is a co-holder of an European and US Patent filed by British Telecom.
Preface. List of Symbols and Abbreviations.
1 High-Speed ADC Architectures. 1.1 Introduction. 1.2 The Analog-to-Digital Converter. 1.3 Flash ADCs. 1.4 Two-Step Flash ADCs. 1.5 Folding and Interpolation ADCs. 1.6 Building Blocks of CMOS High-Speed ADCs.
2 Averaging Technique - DC Analysis and Termination. 2.1 Introduction. 2.2 Published Studies on the Averaging Technique. 2.3 Output Voltage and Gain. 2.4 Effect of Mismatches - INL and DNL. 2.5 Averaging in Folding Circuits. 2.6 Considerations About the Yield. 2.7 Termination of the Averaging Network.
3 Averaging Technique - Transient Analysis and Automated Design. 3.1 Introduction. 3.2 Flash ADC Architecture. 3.3 Output Voltage and Gain. 3.4 Effect of Mismatches. 3.5 Design of Averaged Pre-Amplifier Stages in Flash ADCs.
4 Integrated Prototypes using Averaging. 4.1 Introduction. 4.2 7-bit 120 MS/s I/Q flash ADC. 4.3 10-bit 100 MS/s Folding and Interpolation ADC.
5 Offset Cancellation Methods. 5.1 Introduction. 5.2 Offset Cancellation Techniques. 5.3 New Offset Cancellation Technique. 5.4 6-bit 1 GHz Two-Step Subranging ADC.
6 Conclusions. 6.1 Overview of the Research Work.
Appendix A Averaging with Piecewise Linear Differential Pairs. A.1 Introduction. A.2 Output Voltage and Gain. A.3 Effect of Mismatches - INL and DNL.
Appendix B Mismatches in the Resistors of the Aveaging Network. B.1 Introduction. B.2 Mismatches in Resistors R0. B.3 Mismatches in Resistors R1.
Appendix C Averaging in Folding Stages. C.1 Introduction. C.2 Equivalence Between Circular and Infinite Networks. C.3 Output Voltage and Gain. C.4 Effect of Mismatches.
Offset Reduction Techniques in High-Speed Analog-to-Digital Converters analyzes, describes the design, and presents test results of Analog-to-Digital Converters (ADCs) employing the three main high-speed architectures: flash, two-step flash and folding and interpolation. The advantages and limitations of each one are reviewed, and the techniques employed to improve their performance are discussed.
All high-speed ADC architectures (flash, two-step, folding and interpolation) covered in detail
The performance parameters and trade-offs encountered in each of the ADC's sub-blocks are analysed
Most exhaustive study ever performed about averaging is presented
Offset sampling techniques that yield a nearly offset free, high-speed, comparator are described