High-precision current conveyor implementation employing a current-steering output stage

Author: Wilson B.  

Publisher: Taylor & Francis Ltd

ISSN: 1362-3060

Source: International Journal of Electronics, Vol.93, Iss.10, 2006-10, pp. : 653-662

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

An improved current conveyor circuit topology based around the use of a current-steering output stage, rather than the more usual current mirrors, is described in this paper. The primary benefit of this approach is a significantly enhanced current transfer linearity through reduced reliance on output-device matching requirements. Outline performance details are given for a discrete version of the circuit and a prototype IC fabricated using this technique.