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Data Converters
Lecture 0: IntroductionELC 609 Fall 2012
Dr. Mohamed M. Aboudina
[email protected] of Electronics and Communications
Engineering
Faculty of Engineering Cairo University
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Information
ELC 609 Elective course.
Lecture: Saturday 9:00am 12 noon
www.eece.cu.edu.eg/moodle
Access code : elc609@2012
Office hours:
Sunday: 2:00-3:00pm
Or by appointment ([email protected])
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http://www.eece.cu.edu.eg/moodlemailto:[email protected]:[email protected]://www.eece.cu.edu.eg/moodle
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Course Objective
Acquire a thorough understanding of the basicprinciples and
challenges in data converter design
Focus on concepts, architectures and design challenges;
Preparation for further study of state-of-the-art "fine-tuned
realizations
Strategy
Acquire breadth via a complete system walkthrough and asurvey of
existing architectures and techniques
Acquire depth through a midterm project that entailsdesign and
thorough characterization of a specific circuitexample in modern
technology
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Assignments
Simulation assignments (10%)
Midterm Exam (20%)
Midterm Project: (20%)
Design of one of the studied architectures. Transistor-level
simulation will be performed.
Project(s) will be handed around midterm.
Project Report due 2 weeks after last final exam (Project will
need
around 4-6 part-time weeks of work)
Final Exam: (50%)
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Instructor
Education:
B.Sc. 2000, Cairo University
M.Sc. 2002, Cairo University
Ph.D. 2008, University of California, Los Angeles (UCLA).
Experience:
Vidatronic Inc. (June11-present)
Marvell Semiconductor Inc. (Jan09 June11).
Newport Media Inc. (Dec05-Mar07). Mentor Graphics Egypt.
(Dec00-Sept02).
Teaching Assistant (UCLA and Cairo Univ.) .
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Instructor
Research Interest:
Data Converters (Nyquist-rate and Oversampling).
Power Management (DC-DC, LDOs).
Baseband Analog (Filters, VGAs, Transconductance
Amplifiers, Transimpedance Amplifiers, Buffers, FDNR,
etc) up to GHz ranges.
Transceivers for Communication Systems.
Biomedical Applications.
Any possible new topic.
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Why Analog?
Naturally-occurring signals, e.g., RF received signal, voice
andvideo, are analog.
System and medium non-idealities often make it necessary totreat
digital signals as analog (Disk Drive Retrieved Data).
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Why Data Converters?
Data conversion is difficult;
Data converters have a huge market;
The demand for higher performance in data converters keeps
growing;
Cost issues make it desirable to build data converters
inmainstream VLSI technologies rather than dedicated analog
processes. This creates more difficulties in the design.
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Data Converters
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Data Converter Applications
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Data Converter Applications
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Data Converter Examples
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High Speed, Low Resolution
A 6-bit 3.5-GS/s 0.9-V 98-mW Flash ADC in 90-nm CMOS
Degutchi, JSSC08
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Medium Speed, Medium Resolution
A 1.2V 4.5mW 10b 100MS/s Pipeline ADC in a 65nm CMOS.
Boulemnakher,
ISSCC08
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Low Speed, High Resolution
Agah,
VLSI07
A High-Resolution Low-Power Oversampling ADC with
Extended-Range for Bio-Sensor Arrays
15-bit, 1MS/s (fS = 42MHz) and 38 mW.
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Course Contents
Introduction to Data Converters.
Sampling Circuits.
Revision on Opamp Design, Noise Analysis, and Mismatches (2
lectures)
Nyquist-Rate DACs.
Flash ADCs
Folding and Interpolating ADCs
Two-step and Pipelined ADCs (2 lectures)
Oversampling ADCs (2 lectures)
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
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Chapter 8
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Course Contents
Bit-at-a-time ADCs and Time Interleaved (optional)
Layout Considerations
Data Converter Testing (optional)
Chapter 9
Chapter 10
Chapter 11
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References
R. v. d. Plassche, CMOS Integrated Analog-to-Digital and
Digital-to-Analog Converters, 2nd ed., Kluwer, 2003
B. Razavi, Data Conversion System Design, IEEE Press, 1995
F. Maloberti, Data Converters, Springer, 2007
R. Schreier and G. Temes, Understanding Delta-Sigma
DataConverters, IEEE Press, 2005
IEEE Journal of Solid-State Circuits and Systems
IEEE Transactions on Circuits and Systems.
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