Title :
A noise insensitive high speed versatile operational amplifier library cell
Author :
Asmanis, Georgios S.
Author_Institution :
Div. of Network Access, Conexant Syst., Newport Beach, CA, USA
Abstract :
Probably the most important building block in a mixed-signal system is the operational amplifier. Power consumption is the critical performance characteristic in fast op-amp design. Low power supplies have become dominant in modern mixed-signal VLSI systems. Unlike CMOS digital modules, which are functionally insensitive to power supply variations, traditional analog cells not only fail to perform and achieve the expected performance characteristics but also may become totally non-functional. This fact, together with the requirement of high density mixed analog-digital VLSI systems by the commercial microelectronic industry, urges the research into new analog architectures capable of achieving high performance characteristics in exceedingly noisy environments, where the presence of digital circuitry is abandoned. Furthermore, modularity and easy implementation is another crucial factor that can drastically reduce a product´s overall development time and determine its commercial and financial success or failure. For such reasons, power supply insensitive, self-biasing architectures are highly advantageous, successfully limiting the design, layout and routing effort and ruling the economic prosperity of the product
Keywords :
CMOS analogue integrated circuits; CMOS integrated circuits; VLSI; high-speed integrated circuits; integrated circuit design; integrated circuit noise; linear network analysis; linear network synthesis; low-power electronics; mixed analogue-digital integrated circuits; operational amplifiers; fast op-amp design; high speed op amp; low power supplies; mixed-signal VLSI systems; modularity; noise insensitive opamp; noisy environment; op amp library cell; operational amplifier library cell; performance characteristic; power consumption; power supply insensitive architectures; self-biasing architectures; super cascoded op amp; Analog-digital conversion; Circuit noise; Electricity supply industry; Energy consumption; Microelectronics; Operational amplifiers; Power supplies; Routing; Very large scale integration; Working environment noise;
Conference_Titel :
Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on
Conference_Location :
Pafos
Print_ISBN :
0-7803-5682-9
DOI :
10.1109/ICECS.1999.813230