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

Volume

2

fYear

1995

Firstpage

491

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microelectronics, 1995. Proceedings., 1995 20th International Conference on

Conference_Location

Nis

Print_ISBN

0-7803-2786-1

Type

conf

DOI

10.1109/ICMEL.1995.500915

Filename

500915