1. EECT 7327 Data Converters Professor Yun Chiu © Erik Jonsson School of Electrical Engineering and Computer Science University of Texas at Dallas

2. Logistics Instructor: Professor Yun Chiu E-Mail: chiu.yun@utdallas.edu
Office Hour: Tuesday, 2-4 pm, in ECSN 3.602
TA: TBA
TA Office Hour: TBA
Website:
Lecture notes, handouts, project assignments, etc. will be posted on the website (no paper copy will be distributed in class)

3. Prerequisites Analog circuit design Digital signal processing
Data Converters Introduction Professor Y. Chiu
EECT Fall 2014
Prerequisites
Analog circuit design
EECT 6326 (Analog IC Design), or equivalent at the level of G&M, Razavi, or similar books
Digital signal processing
EE 4361 (Digital Signal Processing), or equivalent at the level of O&S or similar books
Digital circuit design
Basic knowledge of gate/transistor-level logic design (logic family, sequential logic, etc.)
Some knowledge of AHDL or Verilog-A is helpful for the project

4. Course Outline (not in order)
Data Converters Introduction Professor Y. Chiu
EECT Fall 2014
Course Outline (not in order)
Switched-capacitor circuit techniques and realization
SC amplifier and SC integrator
Review of topics in sampled-data signal processing
Sample-and-hold amplifier (SHA)
Nyquist-rate data converters
Flash, algorithmic/cyclic, SAR, pipeline, subranging, etc.
Oversampled data converters
Single-loop, MASH, multi-bit, continuous-time, etc.
Precision techniques for data conversion
Digital calibration, digital assistance, and digital post-processing
Data converter testing and benchmarks
Technology trend and figure-of-merit (FoM)
Advanced topics (if time allows)

5. Lecture Notes & Textbook
Data Converters Introduction Professor Y. Chiu
EECT Fall 2014
Lecture Notes & Textbook
Textbook: No required textbook. Lecture notes, slides, and papers will be posted on the course website.
References
Analog circuit design
Gray, et al., Analysis and Design of Analog Integrated Circuits, 4th Ed., Wiley, 2001
Razavi, Design of Analog CMOS Integrated Circuits, McGraw-Hill, 2001
Johns and Martin, Analog Integrated Circuit Design, Wiley, 1997
Allen and Holberg, CMOS Analog Circuit Design, 2nd Ed., Oxford, 2002
Data converters
Razavi, Principles of Data Conversion System Design, IEEE Press, 1995
van de Plassche, CMOS Integrated Analog-to-Digital and Digital-to-Analog Converters, 2nd Ed., Kluwer, 2003
Norsworthy et al., Delta-Sigma Data Converters: Theory, Design, and Simulation, Wiley, 1996
Switched-capacitor circuits
Gregorian and Temes, Analog MOS Integrated Circuits for Signal Processing, Wiley, 1986

6. CAD Tools CAD Tools required: CAD Tools recommended: SpectreRF
Data Converters Introduction Professor Y. Chiu
EECT Fall 2014
CAD Tools
CAD Tools required:
SpectreRF
SPICE-type analyses: .dc, .ac, .xf, .noise, .tran, etc.
Additional capabilities: pss, pac, pxf, pnoise, pdisto to analyze large-signal nonlinear circuits (e.g., switched-capacitor circuits, RF circuits)
MATLAB, Simulink
Mixed-domain behavioral modeling, analog/digital filter synthesis, etc.
CAD Tools recommended:
Cadence GUI suite (awd, ocean, icfb, msfb, icde, icms, etc.) for design entry, simulation, waveform display, etc.

7. Projects, Exam, and Grading
Data Converters Introduction Professor Y. Chiu
EECT Fall 2014
Projects, Exam, and Grading
A series of three phases of a nearly semester-long term project to build a
X-bit, Y-MS/s Z-type CMOS ADC…
Midterm exam: 30% (TBA)
Term Project: 70%
Phase I: 20% (assigned in 4th week)
Phase 2: 20% (assigned in 7th week)
Phase 3: 30% (assigned in 10th week)
Project presentation: 5% (in class, last day of instruction)
Grading Policy: Projects are to be completed by two-student groups, with each group submitting a joint report (and SPICE decks) in each phase. Grading in each phase will be independent, i.e., based on phase-specific goals and specifications.

8. Isn’t Digital Great Enough?
Data Converters Introduction Professor Y. Chiu
EECT Fall 2014
Why This Course?
Isn’t Digital Great Enough?

9. Advantages of Digital VLSI
Data Converters Introduction Professor Y. Chiu
EECT Fall 2014
Advantages of Digital VLSI
Noise immunity, robustness
Unlimited precision or accuracy
Flexibility, programmability, and scalability
Electronic design automation (EDA) tools widely available and successful
Benefiting from Moore’s law – “The number of transistors on a chip doubles every 18 months,” IEDM, 1975
Cost/function drops 29% every year
That’s 30X in 10 years

10. Data Converters Introduction Professor Y. Chiu
EECT Fall 2014
Moore’s Law
2004 International Technology Roadmap of Semiconductor (

11. Data Converters Introduction Professor Y. Chiu
EECT Fall 2014
Moore’s Law
“If GM had kept up with technology like the computer industry has, we would all be driving $25 cars that got 1,000 miles to the gallon…”
– Bill Gates, COMDEX keynote
Technology
Scaling

12. Just Digital is far from enough…
Data Converters Introduction Professor Y. Chiu
EECT Fall 2014
Just Digital is far from enough…
Paul Gray’s eggshell diagram

13. Challenges for Analog Sensitive to noise – SNR (signal-to-noise ratio)
Data Converters Introduction Professor Y. Chiu
EECT Fall 2014
Challenges for Analog
Sensitive to noise – SNR (signal-to-noise ratio)
Subject to device nonlinearities – THD (total harmonic distortion)
Sensitive to device mismatch and process variations
Difficult to design, simulate, layout, test, and debug
Inevitable, often limits the overall system performance/cost
Scaling scenario outlook
High-speed, low-resolution applications benefit
High SNR design difficult to scale with low supply voltages

14. Example 1 – Mixed-Signal Hearing Aid
Data Converters Introduction Professor Y. Chiu
EECT Fall 2014
Example 1 – Mixed-Signal Hearing Aid
0.5
0.1
0.01
0.001
Normalized frequency
-150
-50
-100
[dB]

15. Example 2 – PRML Read Channel
Data Converters Introduction Professor Y. Chiu
EECT Fall 2014
Example 2 – PRML Read Channel

16. Example 3 – RF Transceiver
Data Converters Introduction Professor Y. Chiu
EECT Fall 2014
Example 3 – RF Transceiver
Desirable
Channel

17. Example 3 – RF Transceiver
Data Converters Introduction Professor Y. Chiu
EECT Fall 2014
Example 3 – RF Transceiver
Small form factor, high integration, more functions, low power
Market/economy is the ultimate driving force
Future A D
Ericsson Bluetooth
(CMOS, 2001)
CMOS? or
something else?
Ericsson CH388
(Hybrid, 1995)
Berkäna GSM/GPRS
(CMOS, 2005)
Past
Present