Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2016
Session Number:T2-2
Session:
Number:4781
Improvement Techniques of Low Frequency Characteristic for a Symmetrical Floating Impedance Scaling Circuit
Fujihiko Matsumoto, Syuzo Nishioka, Shota Matsuo, Takeshi Ohbuchi ,
pp.483-486
Publication Date:2016/7/10
Online ISSN:2188-5079
Summary:
Impedance scaling is a technique to multiply apparent capacitance using current feedback. The authors have proposed a symmetrical floating impedance scaling (SFIS) circuit. The conventional SFIS circuit has cascode stages to enhance resistance components for low frequency characteristics. However, the improvement of low frequency characteristics by cascode is not sufficient for a few Hz applications. This paper presents two methods to improve the low frequency characteristics of the SFIC circuit.