Pipelined ADC Design and Enhancement Techniques by Imran AhmedPipelined ADC Design and Enhancement Techniques by Imran Ahmed

Pipelined ADC Design and Enhancement Techniques

byImran Ahmed

Paperback | May 5, 2012

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Pipelined ADCs have seen phenomenal improvements in performance over the last few years. As such, when designing a pipelined ADC a clear understanding of the design tradeoffs, and state of the art techniques is required to implement today's high performance low power ADCs.

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Title:Pipelined ADC Design and Enhancement TechniquesFormat:PaperbackDimensions:225 pages, 9.25 × 6.1 × 0.04 inPublished:May 5, 2012Publisher:Springer NetherlandsLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:9400731795

ISBN - 13:9789400731790

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Table of Contents

Chapter 1: Introduction. 1.1 : Overview. 1.2 : Chapter outline. SECTION I: PIPELINED ADC DESIGN. Chapter 2: ADC Architectures. 2.1 : Overview. 2.2 : Factors which determine ADC resolution and linearity. 2.3 : ADC architectures. 2.4 : ADC Figure-of-Merit. 2.5 : Flash ADC. 2.6 : SAR ADC. 2.7 : Sub-sampling. 2.8 : Summary.Chapter 3: Pipelined ADC Architecture Overview. 3.1 : Overview. 3.2 : Pipelined ADC introduction. 3.3 : Multiplying Digital to Analog Converter (MDAC). 3.4 : Opamp DC gain requirements. 3.5 : Opamp bandwidth requirements. 3.6 : Thermal noise requirements. 3.7 : MDAC design - capacitor matching/linearity. 3.8 : Error correction in Pipelined ADCs - relaxed sub-ADC requirements. 3.9 : Sub-ADC design - comparator. 3.10 : Front-end Sample-and-hold. 3.11 : Summary. Chapter 4: Scaling Power with Sampling rate in an ADC. 4.1 : Overview. 4.2 : ADC power as a function of sampling rate. 4.3 : Digital versus analog power. 4.4 : Weak inversion model - EKV. 4.5 : Weak inversion issues - mismatch. 4.6 : Current scaling: Multiple design corners. 4.7 : Current scaling - Bias point sensitivity. 4.8 : Current scaling - IR drops. 4.9 : Summary. Chapter 5: State of the art Pipelined ADC Design. 5.1 : Overview. 5.2 : Calibration in pipelined ADCs. 5.3 : Power scalability with respect to sampling rate. 5.4 : Power reduction techniques in Pipelined ADCs. 5.5 : Summary. SECTION II: PIPELINED ADC ENHANCEMENT TECHNIQUES. Chapter 6: Rapid calibration of DAC and gain errors in a multi-bit pipeline stage. 6.1 : Overview. 6.2 : Motivation. 6.3 : Rapid DAC + gain calibration architecture. 6.4 : Circuit implementation. 6.5 : Testing. 6.6 : Measured results. 6.7 : Summary. Chapter 7: A Power Scalable and Low Power Pipelined ADC. 7.1 : Overview. 7.2 : Power scalable architecture. 7.3 : Current Modulated Power Scaling (CMPS). 7.4 : Current switching issues. 7.5 : Hybrid power scaling. 7.6 : Detailed trigger analysis. 7.7 : Design of the digital state machine. 7.8 : Rapid Power-On Opamps. 7.9 : Common Mode Feed Back (CMFB) for Rapid Power-On Opamp. 7.10 : Power reduction through current modulation. 7.11 : Sample-and-Hold (S/H). 7.12 : 1.5-bit MDAC. 7.13 : Sub-ADC comparators. 7.14 : Bias circuits. 7.15 : Non overlapping clock generator. 7.16 : Reference voltages. 7.17 : Digital error correction. 7.18 : Experimental implementation - PCB. 7.19 : Experimental Implementation - Test setup. 7.20 : Measured results. 7.21 : Current scaled power. 7.22 : Power scalable ADC - Power Scaling using CMPS. 7.23 : Summary. Chapter 8: A sub-sampling ADC with embedded sample-and-hold. 8.1 : Overview. 8.2 : Motivation. 8.3 : Embedded S/H technique. 8.4 : Circuit implementation. 8.5 : Test setup - PCB. 8.6 : Test setup - Equipment. 8.7 : Measured results. 8.8 : Summary. Chapter 9: A capacitive charge pump based low power pipelined ADC. 9.1 : Overview. 9.2 : Motivation. 9.3 : Architecture - capacitive charge pump based gain. 9.4 : Effect of parasitic capacitors. 9.5 : Unity gain buffer topology. 9.6 : Noise analysis of capacitive charge pump based MDAC. 9.7 : Calibration of pipeline stages. 9.8 : Theoretical power savings. 9.9 : Design specifications. 9.10 : Circuit design. 9.11 : Testing. 9.12 : Measured results. 9.13 : Summary. Chapter 10: Summary. 10.1 : Summary. References. Index.