Title :
A geometry independent CMOS transconductor: new method of linearization and AC analysis
Author :
Razera, Luiz Antônio, Jr. ; de Moraes, Wilmar Bueno
Author_Institution :
Fac. of Electron. Eng., Univ. Estadual de Campinas, Sao Paulo, Brazil
Abstract :
This paper presents a new technique to linearize the output current of a CMOS transconductor. This method is specially useful on implementations of the circuit where the designer does not have access to transistors geometry, such as gate arrays and sea of gates structures. It can be used in full-custom designs as well. The proposed technique is suitable to be used on standard CMOS processes, “n” or “p” wells, where body-effect is the main source of non-linearity. A complete analytical AC analysis is also performed. Spice simulations are used to verify the predicted results
Keywords :
CMOS analogue integrated circuits; analogue processing circuits; circuit analysis computing; convertors; equivalent circuits; frequency response; frequency-domain analysis; harmonic distortion; linearisation techniques; AC analysis; CMOS transconductor; Spice simulations; full-custom designs; geometry independent transconductor; linearization; output current; CMOS analog integrated circuits; CMOS process; CMOS technology; Equations; Geometry; Performance analysis; Predictive models; Semiconductor device modeling; Threshold voltage; Transconductors;
Conference_Titel :
Microelectronics, 1995. Proceedings., 1995 20th International Conference on
Conference_Location :
Nis
Print_ISBN :
0-7803-2786-1
DOI :
10.1109/ICMEL.1995.500915
