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ECE 627
Oversampled Delta-Sigma Data Converters

Spring 2021

Lectures: MWF 3:00 - 3:50 pm
Room: Online
Instructor: Gabor C. Temes, Professor
3091 Kelley Engineering Center
temes@eecs.oregonstate.edu
Office Hour: By email
Prerequisite: ECE 626
Text:
  1. Analog Integrated Circuit Design, D. Johns and K. Martin, Wiley, 1997 or second ed. by T.Carusone, D.Johns and K. Martin, Wiley, 2012 (required)
  2. Data Conversion System Design, by B. Razavi, IEEE Press, 1995 (Optional).
  3. Understanding Delta-Sigma Data Converters, by R. Schreier and G.C.Temes, IEEE Press/Wiley, 2004 (Optional)
  4. Data Converters, F. Maloberti, Springer 2007 (Optional)
  5. Analog-to-Digital Conversion, M. Pelgrom, second ed,. Springer,2013(optional)
Website: http://classes.engr.oregonstate.edu/eecs/spring2021/ece627/
Course Content:
  1. The functions and applications of D/A and A/D converters.
  2. Ideal DACs and ADCs: operation, specifications, metrics.
  3. Converter nonidealities: offset and gain error, DNL, INL, non-monotonicity, missing codes, SNR, DR, SFDR, etc.
  4. DAC architectures: decoder-type, binary, thermometer, hybrid DACs.
  5. DAC circuit structures: R-string and R-ladder circuits, current-steering, charge- redistribution, hybrid, segmented DACs.
  6. ADC architectures: integrating, successive-approximation and algorithmic, pipelined, time-interleaved, sub ranging and two-step, interpolating, folding and flash ADCs.
  7. ADC circuits: resistor-string, charge-redistribution, current-steering, hybrid, folding/interpolating circuits.
  8. Operational principles of delta-sigma (D-S) DACs and ADCs.
  9. Main architectures for the realization of D-S DACs and ADCs.
  10. Circuit realization and nonidealities of D-S data converters.

Planned schedule of discussions:

  1. Review of data converter operation and characterization (1/2 week)
  2. DAC architectures, structures, nonidealities (1 week)
  3. ADC architectures, structures, nonidealities (2 weeks)
  4. Oversampling data converters (6 weeks)
MIDTERM EXAMINATION: Friday, May 3, 3:00-3:50pm
FINAL EXAMINATION: Tuesday, June 11, 9:30-11:20 am