Data Converter Design Introduction 1 Data Converters Signal Conditioning ADC MCU DAC Post Processing Amplification Antialiasing filter ex Smoothing filter AnalogtoDigital Converters ID: 603300
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Slide1
EE 691WData Converter Design
Introduction
1Slide2
Data Converters
Signal
Conditioning
ADC
MCU
DAC
Post
Processing
-Amplification
-Anti-aliasing
filter
ex. Smoothing filter
Analog-to-Digital Converters
(ADCs) provide an interface from the outside world to a computing system
Digital-to-Analog Converters
(DACs)
provide an interface
from a computing system to the outside world
2Slide3
Why This Course on Data Converters?
Needed to interface with
the physical world
Data converters are everywhere – huge market
Demand for increasing data converter performance keeps growing
System-on-a-chip applications mean that data converters are in truly mixed-signal applicationsData converters are typically the bleeding edge of analog/mixed-signal designData converters are notoriously difficult to design
3Slide4
Why is data converter design difficult?
Need high precision from imprecise partsVery large, complicated systems, so simulation is difficult (and sometimes impossible)
Many, many transistors – simulations can last hours/days
Convergence problems
These are mixed-signal systems
NoiseCouplingOften require advanced processing and/or post-fabrication correction
Laser trimmingFusesInteraction with DSPsThese techniques complicate design/simulationDifferent from other analog systemsDeal with large signals (not small-signal modeling)
4Slide5
Time
Barbie Tootle
Hayes Cape
Cartoon Room I
Cartoon Room II
Suzanne M. Scharer
Rosa M. Ailabouni
Monday
Aug 5th, 2013
10:10-11:50
A1L-A
Analog Circuits I
Chr: Ming Gu, Shantanu Chakrabartty
Track: Analog and Mixed Signal Integrated Circuits
A1L-B
Low Power Digital Circuit Design Techniques
Chr: Joanne Degroat
Track: Digital Integrated Circuits, SoC and NoC
A1L-C
Student Contest I
Chr: Mohammed Ismail
Track: INVITED ONLY
A1L-D
Design and Analysis for Power Systems and Power Electronics
Chr: Hoi Lee, Ayman FayedTrack: Power Systems and Power Electronics
A1L-E
Design and Analysis of Linear and Non-Linear SystemsChr: Samuel Palermo
Track: Linear and Non-linear Circuits and Systems
A1L-FEmerging TechnologuesChr: Khaled Salama
Track: Emerging TechnologiesMonday
Aug 5th, 2013
13:10-14:50
A2L-A
Analog Circuits II
Chr: Ming Gu, Shantanu Chakrabartty
Track: Analog and Mixed Signal Integrated Circuits
A2L-B
Low Power VLSI Design MethodologyChr: Genevieve SapijaszkoTrack: Digital Integrated Circuits, SoC and NoCA2L-CStudent Contest IIChr: Sleiman Bou-SleimanTrack: INVITED ONLYA2L-DPower Management and Energy HarvestingChr: Ayman Fayed, Hoi LeeTrack: Power Management and Energy HarvestingA2L-EOscillators and Chaotic SystemsChr: Samuel Palermo, Warsame AliTrack: Linear and Non-linear Circuits and SystemsA2L-FBioengineering SystemsChr: Khaled SalamaTrack: Bioengineering Systems and Bio ChipsMondayAug 5th, 201316:00-17:40A4L-AAnalog Design Techniques IChr: Dong HaTrack: Analog and Mixed Signal Integrated CircuitsA4L-BImaging and Wireless SensorsChr: Igor FilanovskyTrack: Analog and Mixed Signal Integrated CircuitsA4L-CSpecial Session: Characterization of Nano Materials and CircuitsChr: Nayla El-KorkTrack: SPECIAL SESSIONA4L-DSpecial Session: Power Management and Energy HarvestingChr: Paul FurthTrack: SPECIAL SESSIONA4L-ECommunication and Signal Processing CircuitsChr: Samuel PalermoTrack: Linear and Non-linear Circuits and SystemsA4L-FSensing and Measurement of Biological SignalsChr: Hoda Abdel-Aty-ZohdyTrack: Bioengineering Systems and Bio ChipsTuesdayAug 6th, 201310:10-11:50B2L-AAnalog Design Techniques IIChr: Valencia KoomsonTrack: Analog and Mixed Signal Integrated CircuitsB2L-BVLSI Design ReliabilityChr: Shantanu Chakrabartty, Gursharan ReehalTrack: Digital Integrated Circuits, SoC and NoCB2L-CDelta-Sigma ModulatorsChr: Vishal SaxenaTrack: Analog and Mixed Signal Integrated CircuitsB2L-DSpecial Session: University and Industry Training in the Art of ElectronicsChr: Steven BibykTrack: SPECIAL SESSIONB2L-ERadio Frequency Integrated CircuitsChr: Nathan Neihart, Mona HellaTrack: RFICs, Microwave, and Optical SystemsB2L-FBio-inspired Green TechnologiesChr: Hoda Abdel-Aty-ZohdyTrack: Bio-inspired Green TechnologiesTuesdayAug 6th, 201313:10-14:50B3L-AAnalog Design Techniques IIIChr: Valencia KoomsonTrack: Analog and Mixed Signal Integrated CircuitsB3L-BVLSI Design, Routing, and TestingChr: Nader RaflaTrack: Programmable Logic, VLSI, CAD and LayoutB3L-CSpecial Session: High-Precision and High-Speed Data Converters IChr: Samuel PalermoTrack: SPECIAL SESSIONB3L-DSpecial Session: Advancing the Frontiers of Solar EnergyChr: Michael SoderstrandTrack: SPECIAL SESSIONB3L-ERF/Optical Devices and CircuitsChr: Mona Hella, Nathan NeihartTrack: RFICs, Microwave, and Optical SystemsB3L-FCarbon Nanotube-based Sensors and BeyondChr: Nayla El-KorkTrack: Nanoelectronics and NanotechnologyTuesdayAug 6th, 201316:00-17:40B5L-ANyquist-Rate Data ConvertersChr: Vishal SaxenaTrack: Analog and Mixed Signal Integrated CircuitsB5L-BDigital CircuitsChr: Nader RaflaTrack: Programmable Logic, VLSI, CAD and LayoutB5L-CSpecial Session: High-Precision and High-Speed Data Converters IIChr: Samuel PalermoTrack: SPECIAL SESSIONB5L-DSpecial Session: RF-FPGA Circuits and Systems for Enhancing Access to Radio Spectrum (CAS-EARS)Chr: Arjuna Madanayake, Vijay DevabhaktuniTrack: SPECIAL SESSIONB5L-EAnalog and RF Circuit TechniquesChr: Igor FilanovskyTrack: Analog and Mixed Signal Integrated CircuitsB5L-FMemristors, DG-MOSFETS and Graphine FETsChr: Reyad El-KhazaliTrack: Nanoelectronics and NanotechnologyWednesdayAug 7th, 201310:10-11:50C2L-APhase Locked LoopsChr: Chung-Chih HungTrack: Analog and Mixed Signal Integrated CircuitsC2L-BComputer Arithmetic and CryptographyChr: George PurdyTrack: Programmable Logic, VLSI, CAD and LayoutC2L-CSpecial Session: Reversible ComputingChr: Himanshu ThapliyalTrack: SPECIAL SESSIONC2L-DSpecial Session: Self-healing and Self-Adaptive Circuits and SystemsChr: Abhilash Goyal, Abhijit ChatterjeeTrack: SPECIAL SESSIONC2L-EDigital Signal Processing-Media and ControlChr: Wasfy Mikhael, Steven BibykTrack: Digital Signal ProcessingC2L-FAdvances in Communications and Wireless SystemsChr: Sami MuhaidatTrack: Communication and Wireless SystemsWednesdayAug 7th, 201313:10-14:50C3L-ASAR Analog-to-Digital ConvertersChr: Vishal SaxenaTrack: Analog and Mixed Signal Integrated CircuitsC3L-BReal Time SystemsChr: Brian Dupaix, Abhilash GoyalTrack: System ArchitecturesC3L-CImage Processing and InterpretationChr: Annajirao GarimellaTrack: Image Processing and Multimedia SystemsC3L-DSpecial Session: Verification and Trusted Mixed Signal Electronics DevelopmentChr: Greg Creech, Steven BibykTrack: SPECIAL SESSIONC3L-EDigital Signal Processing IChr: Ying LiuTrack: Digital Signal ProcessingC3L-FWireless Systems IChr: Sami MuhaidatTrack: Communication and Wireless SystemsWednesdayAug 7th, 201316:00-17:40C5L-AWireless Systems IIChr: Sami MuhaidatTrack: Communication and Wireless SystemsC5L-BSystem ArchitecturesChr: Swarup Bhunia, Abhilash GoyalTrack: System ArchitecturesC5L-CImage Embedding Compression and AnalysisChr: Annajirao GarimellaTrack: Image Processing and Multimedia SystemsC5L-DLow Power Datapath DesignChr: Wasfy MikhaelTrack: Digital Integrated Circuits, SoC and NoCC5L-EDigital Signal Processing IIChr: Moataz AbdelWahabTrack: Digital Signal ProcessingC5L-FAdvances in Control Systems, Mechatronics, and RoboticsChr: Charna Parkey, Genevieve SapijaszkoTrack: Control Systems, Mechatronics, and Robotics
5Slide6
Typical ADCs
Anti-aliasing filter to
bandlimit
the signal
Converts from continuous-time to discrete-time
(switched-capacitor techniques)
- Primary active element is the comparator
- Often includes a DAC
- Creates the digital word- Provides error correction- Time synchrony
6Slide7
Nyquist-Rate vs. Oversampled
Nyquist-Rate
Sample at a rate close to the
Nyquist
frequency
“Conventional” type of data convertersProvides the fastest sampling rates / bandwidthsOversampledSampling rate is much, much higher than the
Nyquist rate (typically at least 20 times higher)Often called “noise-shaping” circuitsProvides very high resolution7Slide8
Schedule
Week
Topic
1
Introduction, Data
Converter Fundamentals
2Advanced
Simulation, Behavioral Modeling3Comparators4Introduction
to Switched Capacitor Circuits5Switched Capacitor Amplifiers and Filters6Sample-and-Hold Circuits
7Parallel Nyquist
-Rate DACS8Improved Parallel Nyquist-Rate DACS, Serial DACs
9Low and Medium Speed Nyquist-Rate ADCs
10High Speed Nyquist-Rate ADCs11Oversampled Converters
12Oversampled Converters13
Current State of the Art, Final Project Design14Current State of the Art, Final Project Design
15Current State of the Art, Final Project Design
8Slide9
Expectations Coming into Class
That you will participate!That you will actually do the reading
Emphasis on doing, simulating, and creating
That you remember (or can relearn) Cadence
That we will be able to find a time to meet outside of class time for brief project updates (for the final project)
A willingness to experiment and search for answers
9Slide10
Mechanics of Class
Several short announced quizzesCover recent reading material
Usually 15-20 minutes
Focus on understanding concepts, as opposed to solving problems
Reading synopses
Short write-ups on what you readIn-class summaries of a specific aspect/circuit (short explanatory presentation, usually just a few minutes)
Statement saying that you actually did the readingIn-class discussion and problemsClass time is a time for discussion, sharing ideas/designs, and getting questions answeredDesign reviews and project summariesEveryone participates! Please provide your input, suggestions, questions
10