Advances in the Design of Bipolar/CMOS CFOAs and Future Directions of Research on CFOAs

Abstract

This chapter outlines recent advances in the design of bipolar and CMOS CFOAs and describes a number of new bipolar as well as CMOS CFOA architectures chosen from the ones reported in recent technical literature. Also included is a discussion about various modified forms of CFOAs which have been proposed recently (such as current-controlled CFOA, modified CFOA, differential-voltage CFOA and differential difference complementary current feedback amplifiers), their suggested hardware implementations and potential applications. Lastly, some comments are given on the future directions of research on CFOAs and their applications.