Smart AD and DA Conversion

✍ Scribed by Arthur van Roermund, Hans Hegt, Pieter Harpe (auth.)

• Publisher: Springer Netherlands
• Year: 2010
• Tongue: English
• Leaves: 174
• Series: Analog Circuits and Signal Processing 0
• Edition: 1
• Category: Library

✦ Synopsis

While technology evolution is beneficial for digital circuits, it can cause performance limitations for analog circuits. To benefit from the technology evolution for analog circuits as well, the smart concept aims at improving the analog performance by using digital intelligence. In Smart AD and DA Conversion, the smart concept is applied to AD and DA converters by using on-chip intelligence to detect analog imperfections and to correct for them.

First, general trends and challenges in data converter design are studied and a generalized view on smart conversion is introduced. Then, the smart concept is applied to solve specific imperfections in two design examples: a sub-binary variable-radix current-steering DA converter and a time-interleaved open-loop track&hold circuit. In both cases, the developed concepts are supported by theory and implemented test chips. The examples show that the smart concept can be successfully applied to improve the performance of AD and DA converters with respect to chip area, power consumption, static accuracy and/or dynamic accuracy.

✦ Table of Contents

Front Matter....Pages i-ix
Introduction....Pages 1-2
AD and DA Conversion....Pages 3-9
Smart Conversion....Pages 11-17
Smart DA Conversion....Pages 19-40
Design of a Sub-Binary Variable-Radix DAC....Pages 41-55
Smart AD Conversion....Pages 57-71
Design of an Open-Loop T&H Circuit....Pages 73-102
T&H Calibration....Pages 103-124
T&H Calibration for Time-Interleaved ADCs....Pages 125-154
Conclusions....Pages 155-156
Back Matter....Pages 157-167

✦ Subjects

Circuits and Systems; Solid State Physics