Title :
A tool for automated design of sigma-delta modulators using statistical optimization
Author :
Medeiro, F. ; PerezVerdu, B. ; RodriguezVazquez, A. ; Huertas, J.L.
Author_Institution :
Centro Nacional de Microelectronica, Sevilla, Spain
Abstract :
A tool is presented which starting from high-level specifications of switched capacitor (SC) Σ-Δ modulators calculates first optimum specifications for the building blocks, and then, optimum sizes for their schematics. At both design levels (high-level synthesis and cell dimensioning), optimization is performed using statistical techniques and innovative heuristics, which allow global design and increased computer efficiency as compared to conventional statistical optimization techniques. The tool has been conceived to be flexible at the high-level part and completely open at the cell-design part. The performance of the tool is demonstrated via the automatic design of a 16-bits-dynamic range, 8-kHz second-order SC Σ-Δ modulator in 1.2-μm CMOS technology, for which measurements on a fabricated prototype are reported
Keywords :
CMOS integrated circuits; circuit CAD; circuit optimisation; high level synthesis; integrated circuit design; sigma-delta modulation; 1.2 micron; 16 bits; 8 kHz; CMOS technology; SC modulators; automated design; automatic design; cell dimensioning; design levels; global design; heuristics; high-level synthesis; sigma-delta modulators; statistical optimization; Application specific integrated circuits; CMOS technology; Circuit noise; Delta-sigma modulation; Design automation; Design optimization; Equations; High level synthesis; Integrated circuit technology; Signal processing;
Conference_Titel :
Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1281-3
DOI :
10.1109/ISCAS.1993.393987
