Syllabus academic year 2011/2012
(Created 2011-09-01.)
INTEGRATED A/D AND D/A CONVERTERS | ETI220 |
Credits: 6.
Grading scale: TH.
Cycle: A
(Second Cycle).
Main field: Technology.
Language of instruction: The course will be given in English.
Compulsory for: MSOC1.
Optional for: D4, D4dpd, E4, E4dpd.
Course coordinator: Associate professor Pietro Andreani, Pietro.Andreani@eit.lth.se, Electrical and Information Technology.
Prerequisites: ESSF01 Analogue Circuits.
Assessment: Attending at least 10 lectures, finishing all 4 lab works, and delivering qualified lab reports guarantee grade 3. For higher grades (4 or 5), a written examination is required.
Further information: The course will be given in English.
Home page: http://www.eit.lth.se/course/eti220.
Aim
This course is to give student the knowledge about two kinds of important mixed signal circuits, A/D and D/A converters, which are getting more and more importance in modern electronic systems. While digital techniques become undoubtedly efficient, most of the electronic systems still have to deal with analogue signals, e.g. the radio channel in a wireless system. High performance A/D and D/A converters are the key building blocks in such systems. It is also desirable to move the analogue-digital interface towards the front-end in a software-defined radio. In designing A/D and D/A converters, there are big challenges in speed, dynamic range, area, and power consumption. Embedded A/D and D/A converters become increasingly important due to the trend of system-on-chip.
Knowledge and understanding
For a passing grade the student must
- be able to describe basic concepts of A/D and D/A converters, including sampling and quantization theories,
- be able to describe definitions of major specifications,
- be able to describe different architectures and their advantages and disadvantages,
- be able to describe principle of key components and their circuit implementations,
- be able to describe major performance limiting factors and the solutions,
- be able to describe layout techniques.
Skills and abilities
For a passing grade the student must
- be able to apply the knowledge acquired in the course to independently design an A/D or D/A converter with a practical application, by using CAD tools for simulation and layout construction. This can be done in a group consisting of two students.
Judgement and approach
For a passing grade the student must
- be able to orally communicate the results obtained from the laboratory experiment and
- be able to contribute sufficient fundamental concept and knowledge so that a competent person in this area can document the idea, the problem and the solutions.
Contents
Basics of A/D and D/A converters; Specifications of A/D and D/A converters; Flash and two-step A/D converters; Folding, pipeline and successive approximation A/D converters; High accuracy A/D converters and comparator limitations; Sample and hold circuits; High accuracy D/A converters; Oversampling A/D and D/A converters; Testing of AD and D/A converters; Components matching and on-chip reference sources; The state of the art CMOS Nyquist A/D and D/A converters.
Literature
Maloberti F: Data Converters. ISBN-10: 0387324852, ISBN-13: 978-0387324852.