Allen and Holberg - CMOS Analog Circuit Design

GLOBAL OJECTIVES: Teach the analysis, modeling, simulation, and design of analog circuits; implemented in CMOS technology. Emphasis will be on the design methodology and a hierarchicalapproach to the subject.
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Allen and Holberg - CMOS Analog Circuit DesignAllen and Holberg - CMOS Analog Circuit Design Page I.0-1 I. INTRODUCTIONContentsI.1 IntroductionI.2 Analog Integrated Circuit DesignI.3 Technology OverviewI.4 NotationI.5 Analog Circuit Analysis TechniquesAllen and Holberg - CMOS Analog Circuit Design Page I.0-2Organization Chapter 10 Chapter 11 D/A and A/D Analog Systems Converters SYSTEMS Chapter 7 Chapter 8 Chapter 9 CMOS Simple CMOS High Performance Comparators Opamps Opamps COMPLEX CIRCUITS Chapter 5 Chapter 6 CMOS CMOS Subcircuits Amplifiers SIMPLE Chapter 2 Chapter 3 Chapter 4 CMOS CMOS Device Device Technology Modeling Characterization DEVICES IntroductionAllen and Holberg - CMOS Analog Circuit Design Page I.2-1I.1 - INTRODUCTIONGLOBAL OBJECTIVES• Teach the analysis, modeling, simulation, and design of analog circuits implemented in CMOS technology.• Emphasis will be on the design methodology and a hierarchical approach to the subject.SPECIFIC OBJECTIVES1. Present an overall, uniform viewpoint of CMOS analog circuit design.2. Achieve an understanding of analog circuit design. • Hand calculations using simple models • Emphasis on insight • Simulation to provide second-order design resolution3. Present a hierarchical approach. • Sub-blocks → Blocks → Circuits → Systems4. Examples to illustrate the concepts.Allen and Holberg - CMOS Analog Circuit Design Page I.2-1I.2 ANALOG INTEGRATED CIRCUIT DESIGNANALOG DESIGN TECHNIQUES VERSUS TIME FILTERS AMPLIFICATION Passive RLC circuits Open-loop amplifiers 1935-1950 Active-RC Filters Feedback Amplifiers Requires precise definition of time constants (RC Requires precise definition products) of passive components 1978 Switched Capacitor Switched Capacitor Filters Amplifiers Requires precise C Requires precise C ratios and clock ratios 1983 Continuous Time Continuous Time Filters Amplifiers Time constants are Component ratios adjustable are adjustable 1992 ? Digitally assisted analog circuits ?Allen and Holberg - CMOS Analog Circuit Design Page I.2-2DISCRETE VS. INTEGRATED ANALOG CIRCUIT DESIGN Activity/Item Discrete IntegratedComponent Accuracy Well known Poor absolute accuraciesBreadboarding? Yes No (kit parts)Fabrication Independent Very DependentPhysical PC layout Layout, verification, andImplementation extractionParasitics Not Important Must be included in the designSimulation Model parameters well Model parameters vary known widelyTesting Generally complete Must be considered testing is possible before the designCAD Schematic capture, Schematic capture, simulation, PC board simulation, extraction, layout LVS, layout and routingComponents All possible Active devices, capacitors, and resistorsAllen and Holberg - CMOS Analog Circuit Design Page I.2-3THE ANALOG IC DESIGN PROCESS Conception of the idea Definition of the design Comparison ...