Title :
Very-low-power analog cells in CMOS
Author :
Pimentel, Joao ; Salazar, F. ; Pacheco, Marquidia
Author_Institution :
Dept. of Elect. & Comput. Eng., Laval Univ., Ste-foy, Que.
Abstract :
Low power supply consumption has become one of the main issues in the electronics industry for many product areas such as cellular telephones, portable personal computers and biomedical implants. The aim of this work is to investigate the main drawbacks involved in the design of CMOS analog cells biased in weak inversion. Biasing a cell in weak inversion makes it possible to achieve a power consumption that is one thousandth lower than common analog cells designed to operate in strong inversion. This work has involved the following subjects: a study of models for MOS transistors operating in weak inversion and strong inversion regions; a methodology to convert LEVEL 2 Spice model to EKV model; study of basic analog cell blocks suitable for low power mixed-mode IC design; design methodology for low power analog cells; comparison between these cells and some commercial ones; study of analog layout techniques
Keywords :
CMOS integrated circuits; SPICE; cellular arrays; circuit layout CAD; integrated circuit design; integrated circuit layout; integrated circuit modelling; low-power electronics; mixed analogue-digital integrated circuits; CMOS analog cells; EKV model; LEVEL 2 Spice model; MOS transistors; analog layout techniques; design methodology; mixed-mode IC design; power consumption; strong inversion regions; very-low power analog cells; weak inversion biasing; weak inversion regions; Analog integrated circuits; Design methodology; Electronics industry; Energy consumption; Implants; Integrated circuit modeling; MOSFETs; Microcomputers; Semiconductor device modeling; Telephony;
Conference_Titel :
Circuits and Systems, 2000. Proceedings of the 43rd IEEE Midwest Symposium on
Conference_Location :
Lansing, MI
Print_ISBN :
0-7803-6475-9
DOI :
10.1109/MWSCAS.2000.951653
