VLSI Data Conversion Circuits, Aug-Dec 2005: Syllabus/Assignments

Syllabus(Schedule)

• Applications of data conversion systems
• Continuous and Discrete time signals and systems
• External characteristics and nonidealities of Digital to Analog(D/A) and Analog to Digital(A/D) converters.
• Nyquist rate Digital to Analog converters
  • Current Steering
  • Resistive ladder
• Nyquist rate Analog to Digital converters
  • Flash converters: Single step, two step; Interpolation; Folding
  • Pipelined converters: 1.5b/stage
• Oversampled Digital to Analog converters
• Oversampled Analog to Digital converters

Assignments

1. DAC and ADC characterization: pdf; Files for problem 3: dac1.txt, dac2.txt; File for problem 4(output code density): a2dcodes.txt
2. DAC design and simulation: pdf
3. Flash ADC design and simulation: pdf. Use 0.18um CMOS parameters for this assignment. The Eldo libraries are installed at /home/library/UMC/UMC_18_CMOS_Model/Eldo/MM180_TWINWELL_V132_D121203 on the VLSI lab server. Use the "typical" models. section "TT"
4. Pipelined ADC design: pdf.
5. Pipelined ADC, Delta-Sigma ADC: pdf.

Assignment submission

Except for problems that need handwritten solutions, submit all solutions by email as a single pdf file. A quick way to generate a pdf is to concatenate ps(postscript) files containing all figures and text(use enscript to convert text to ps) to a single ps file. Run ps2pdf on this file to get a pdf file. Name your file with your id as eexxxxxx_hw01.pdf so that it is easier for me to keep track of.

enscript -p p1.txt.ps p1.txt
enscript -p p2.txt.ps p2.txt
cat p1.txt.ps fig1.ps p2.txt.ps fig2.ps > out.ps
ps2pdf out.ps eexxxxxx_hw01.pdf