Time-to-Digital Converters

Time-to-Digital Converters
Author: Stephan Henzler
Publisher: Springer Science & Business Media
Total Pages: 132
Release: 2010-03-10
Genre: Technology & Engineering
ISBN: 9048186285

Micro-electronics and so integrated circuit design are heavily driven by technology scaling. The main engine of scaling is an increased system performance at reduced manufacturing cost (per system). In most systems digital circuits dominate with respect to die area and functional complexity. Digital building blocks take full - vantage of reduced device geometries in terms of area, power per functionality, and switching speed. On the other hand, analog circuits rely not on the fast transition speed between a few discrete states but fairly on the actual shape of the trans- tor characteristic. Technology scaling continuously degrades these characteristics with respect to analog performance parameters like output resistance or intrinsic gain. Below the 100 nm technology node the design of analog and mixed-signal circuits becomes perceptibly more dif cult. This is particularly true for low supply voltages near to 1V or below. The result is not only an increased design effort but also a growing power consumption. The area shrinks considerably less than p- dicted by the digital scaling factor. Obviously, both effects are contradictory to the original goal of scaling. However, digital circuits become faster, smaller, and less power hungry. The fast switching transitions reduce the susceptibility to noise, e. g. icker noise in the transistors. There are also a few drawbacks like the generation of power supply noise or the lack of power supply rejection.

Time-interleaved Analog-to-Digital Converters

Time-interleaved Analog-to-Digital Converters
Author: Simon Louwsma
Publisher: Springer Science & Business Media
Total Pages: 148
Release: 2010-09-08
Genre: Technology & Engineering
ISBN: 9048197163

Time-interleaved Analog-to-Digital Converters describes the research performed on low-power time-interleaved ADCs. A detailed theoretical analysis is made of the time-interleaved Track & Hold, since it must be capable of handling signals in the GHz range with little distortion, and minimal power consumption. Timing calibration is not attractive, therefore design techniques are presented which do not require timing calibration. The design of power efficient sub-ADCs is addressed with a theoretical analysis of a successive approximation converter and a pipeline converter. It turns out that the first can consume about 10 times less power than the latter, and this conclusion is supported by literature. Time-interleaved Analog-to-Digital Converters describes the design of a high performance time-interleaved ADC, with much attention for practical design aspects, aiming at both industry and research. Measurements show best-inclass performance with a sample-rate of 1.8 GS/s, 7.9 ENOBs and a power efficiency of 1 pJ/conversion-step.

VCO-Based Quantizers Using Frequency-to-Digital and Time-to-Digital Converters

VCO-Based Quantizers Using Frequency-to-Digital and Time-to-Digital Converters
Author: Samantha Yoder
Publisher: Springer Science & Business Media
Total Pages: 64
Release: 2011-08-28
Genre: Technology & Engineering
ISBN: 1441997229

This book introduces the concept of voltage-controlled-oscillator (VCO)-based analog-to-digital converters (ADCs). Detailed explanation is given of this promising new class of high resolution and low power ADCs, which use time quantization as opposed to traditional analog-based (i.e. voltage) ADCs.

Logarithmic Voltage-to-Time Converter for Analog-to-Digital Signal Conversion

Logarithmic Voltage-to-Time Converter for Analog-to-Digital Signal Conversion
Author: Mauro Santos
Publisher: Springer
Total Pages: 133
Release: 2019-04-05
Genre: Technology & Engineering
ISBN: 3030159787

This book presents a novel logarithmic conversion architecture based on cross-coupled inverter. An overview of the current state of the art of logarithmic converters is given where most conventional logarithmic analog-to-digital converter architectures are derived or adapted from linear analog-to-digital converter architectures, implying the use of analog building blocks such as amplifiers. The conversion architecture proposed in this book differs from the conventional logarithmic architectures. Future possible studies on integrating calibration in the voltage to time conversion element and work on an improved conversion architecture derived from the architecture are also presented in this book.

Background Calibration of Time-Interleaved Data Converters

Background Calibration of Time-Interleaved Data Converters
Author: Manar El-Chammas
Publisher: Springer Science & Business Media
Total Pages: 138
Release: 2011-12-17
Genre: Technology & Engineering
ISBN: 146141511X

This book describes techniques for time-interleaving a number of analog-to-digital data converters to achieve demanding bandwidth requirements. Readers will benefit from the presentation of a low-power solution that can be used in actual products, while alleviating the time-varying signal artifacts that typically arise when implementing such a system architecture.

Analog-to-Digital Conversion

Analog-to-Digital Conversion
Author: Marcel Pelgrom
Publisher: Springer
Total Pages: 565
Release: 2016-09-29
Genre: Technology & Engineering
ISBN: 3319449710

This textbook is appropriate for use in graduate-level curricula in analog-to-digital conversion, as well as for practicing engineers in need of a state-of-the-art reference on data converters. It discusses various analog-to-digital conversion principles, including sampling, quantization, reference generation, nyquist architectures and sigma-delta modulation. This book presents an overview of the state of the art in this field and focuses on issues of optimizing accuracy and speed, while reducing the power level. This new, third edition emphasizes novel calibration concepts, the specific requirements of new systems, the consequences of 22-nm technology and the need for a more statistical approach to accuracy. Pedagogical enhancements to this edition include additional, new exercises, solved examples to introduce all key, new concepts and warnings, remarks and hints, from a practitioner's perspective, wherever appropriate. Considerable background information and practical tips, from designing a PCB, to lay-out aspects, to trade-offs on system level, complement the discussion of basic principles, making this book a valuable reference for the experienced engineer.

Understanding Delta-Sigma Data Converters

Understanding Delta-Sigma Data Converters
Author: Shanthi Pavan
Publisher: John Wiley & Sons
Total Pages: 596
Release: 2017-01-24
Genre: Technology & Engineering
ISBN: 1119258278

This new edition introduces operation and design techniques for Sigma-Delta converters in physical and conceptual terms, and includes chapters which explore developments in the field over the last decade Includes information on MASH architectures, digital-to-analog converter (DAC) mismatch and mismatch shaping Investigates new topics including continuous-time ΔΣ analog-to-digital converters (ADCs) principles and designs, circuit design for both continuous-time and discrete-time ΔΣ ADCs, decimation and interpolation filters, and incremental ADCs Provides emphasis on practical design issues for industry professionals

Integrated Analog-To-Digital and Digital-To-Analog Converters

Integrated Analog-To-Digital and Digital-To-Analog Converters
Author: Rudy J. van de Plassche
Publisher: Springer Science & Business Media
Total Pages: 535
Release: 2012-12-06
Genre: Technology & Engineering
ISBN: 1461527481

Analog-to-digital (A/D) and digital-to-analog (D/A) converters provide the link between the analog world of transducers and the digital world of signal processing, computing and other digital data collection or data processing systems. Several types of converters have been designed, each using the best available technology at a given time for a given application. For example, high-performance bipolar and MOS technologies have resulted in the design of high-resolution or high-speed converters with applications in digital audio and video systems. In addition, high-speed bipolar technologies enable conversion speeds to reach the gigaHertz range and thus have applications in HDTV and digital oscilloscopes. Integrated Analog-to-Digital and Digital-to-Analog Converters describes in depth the theory behind and the practical design of these circuits. It describes the different techniques to improve the accuracy in high-resolution A/D and D/A converters and also special techniques to reduce the number of elements in high-speed A/D converters by repetitive use of comparators. Integrated Analog-to-Digital and Digital-to-Analog Converters is the most comprehensive book available on the subject. Starting from the basic elements of theory necessary for a complete understanding of the design of A/D and D/A converters, this book describes the design of high-speed A/D converters, high-accuracy D/A and A/D converters, sample-and-hold amplifiers, voltage and current reference sources, noise-shaping coding and sigma-delta converters. Integrated Analog-to-Digital and Digital-to-Analog Converters contains a comprehensive bibliography and index and also includes a complete set of problems. This book is ideal for use in an advanced course on the subject and is an essential reference for researchers and practicing engineers.

Digital Converters for Image Sensors

Digital Converters for Image Sensors
Author: Kenton T. Veeder
Publisher:
Total Pages: 174
Release: 2015
Genre: Analog-to-digital converters
ISBN: 9781628413892

This book is intended for image sensor professionals and those interested in the boundary between sensor systems and analog and mixed-signal integrated circuit design. It provides in-depth tips and techniques necessary to understand and implement these two types of complex circuit systems together for a wide variety of architectures or trade off one against another. The tutorial begins with a brief introduction to the history and definition of a digital image sensor, as well as converter characteristics, before addressing DAC and ADC architectures. Later chapters cover pipeline ADC designs, digital correction, calibration, and testing according to IEEE standards.

Analog-digital Conversion Handbook

Analog-digital Conversion Handbook
Author: Analog Devices, inc
Publisher: Prentice Hall
Total Pages: 730
Release: 1986
Genre: Computers
ISBN:

A handbook of analog-to-digital and digital-to-analog converters -- and the circuits and systems that use them -- from the world leader in conversion products.