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SAPICE: A Design Tool of CMOS Operational Amplifiers
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol.E80-A No.9 pp.1667-1675
Publication Date: 1997/09/20
Print ISSN: 0916-8508
Type of Manuscript: PAPER
Category: VLSI Design Technology and CAD
operational amplifier design,
Full Text: PDF(647KB)
Based on a new search strategy using circuit simulation and simulated annealing with local search, a design tool is proposed to automate design or tuning process for CMOS operational amplifiers. A special-purpose circuit simulator and some heuristics are used to accomplish the design within reasonable time. For arbitrary circuit topology and specifications, the discrete optimization of cost function is performed by global and local search. Through the comparision of design results and the design of a low-power high-speed CMOS operational amplifier usable in 10-b 25-MHz pipelined A/D converters, it has been demonstrated that this tool can be used for designing high-performance operational amplifiers with less design knowledge and effort.