Title :
Automatic design of ΣΔ modulators from specifications to silicon
Author :
Medeiro, F. ; Pérez-Verd, B. ; Rodríguez-Vázquez, A. ; Huertas, J.L.
Author_Institution :
Centro Nacional de Microelectron., Sevilla, Spain
Abstract :
We present a tool developed as part of the ESPRIT-AD2000 Project which, starting from high-level specifications of SC ΣΔ modulators, calculates optimum specifications for their building blocks and then, optimum sizes for the block schematics. At both design levels, optimization is performed using statistical techniques to enable global design, and innovative heuristics for increased computer efficiency as compared with conventional statistical optimization approaches. We include measurements taken from a 17 bit @ 40 kHz prototype of an SC fully-differential fourth-order ΣΔ modulator which was designed using the proposed tool for a 1.2 μm CMOS double-metal double-poly technology
Keywords :
CMOS integrated circuits; circuit CAD; circuit optimisation; elemental semiconductors; sigma-delta modulation; silicon; 1.2 mum; 40 kHz; CMOS double-metal double-poly technology; ESPRIT-AD2000 Project; automatic design; computer efficiency; fully-differential fourth-order modulator; global design; high-level specifications; innovative heuristics; optimization; optimum specifications; sigma delta modulator; statistical optimization; statistical techniques;
Conference_Titel :
Advanced A-D and D-A Conversion Techniques and their Applications, 1994. Second International Conference on
Conference_Location :
Cambridge
Print_ISBN :
0-85296-617-2
DOI :
10.1049/cp:19940550
