Smart and flexible digital-to-analog converters

✍ Scribed by Georgi Radulov, Patrick Quinn, Hans Hegt, Arthur H.M. van Roermund (auth.)

• Publisher: Springer Netherlands
• Year: 2011
• Tongue: English
• Leaves: 302
• Series: Analog circuits and signal processing
• Edition: 1
• Category: Library

✦ Synopsis

Smart and Flexible Digital-to-Analog Converters proposes new concepts and implementations for flexibility and self-correction of current-steering digital-to-analog converters (DACs) which allow the attainment of a wide range of functional and performance specifications, with a much reduced dependence on the fabrication process.

DAC linearity is analysed with respect to the accuracy of the DAC unit elements. A classification is proposed of the many different current-steering DAC correction methods. The classification reveals methods that do not yet exist in the open literature. Further, this book systematically analyses self-calibration correction methods for the various DAC mismatch errors. For instance, efficient calibration of DAC binary currents is identified as an important missing method.

This book goes on to propose a new methodology for correcting mismatch errors of both nominally identical unary as well as scaled binary DAC currents. A new concept for DAC flexibility is presented. The associated architecture is based on a modular design approach that uses parallel sub-DAC units to realize flexible design, functionality and performance.

Two main concepts, self-calibration and flexibility, are demonstrated in practice using three DAC testchips in 250nm, 180nm and 40nm standard CMOS. Smart and Flexible Digital-to-Analog Converters will be useful to both advanced professionals and newcomers in the field. Advanced professionals will find new methods that are fully elaborated from analysis at conceptual level to measurement results at test-chip level. New comers in the field will find structured knowledge of fully referenced state-of-the art methods with many fully explained novelties.

✦ Table of Contents

Front Matter....Pages 1-1
Front Matter....Pages 1-1
Introduction....Pages 3-9
Basics of Digital-to-Analog Conversion....Pages 11-29
Front Matter....Pages 31-31
Error Correction by Design....Pages 33-41
Smart Self-Correcting D/A Converters....Pages 43-55
Front Matter....Pages 57-57
Error Modeling for DAC Correction, a Broad View....Pages 59-70
Brownian Bridge Based Analysis and Modeling of DAC Linearity, an In-depth View....Pages 71-83
Classification of Error Correction Methods, a Broad View....Pages 85-94
Analysis of Self-Calibration of Currents, an In-depth View....Pages 95-127
Front Matter....Pages 129-129
New Redundant Segmentation Concept....Pages 131-140
New Methods for Self-Calibration of Currents....Pages 141-158
New Redundant Decoder Concept....Pages 159-168
New High-Level Mapping Concept....Pages 169-175
New Harmonic-Distortion-Suppression Method....Pages 177-183
Flexible Digital-to-Analog Converters Concept....Pages 185-209
Front Matter....Pages 211-211
A Redundant Binary-to-Thermometer Decoder Design....Pages 213-220
Two Self-Calibrating DAC Designs....Pages 221-245
A Functional-Segmentation DAC Design Using Harmonic Distortion Suppression Method....Pages 247-257
A 14 Bit Quad Core Flexible 180 nm DAC Platform....Pages 259-267
A 16 bit 16-core Flexible 40 nm DAC Platform....Pages 269-289
Back Matter....Pages 274-274

✦ Subjects

Circuits and Systems; Electronics and Microelectronics, Instrumentation