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IEICE TRANSACTIONS on Fundamentals

A Realization of Multiple Circuit Transfer Functions Using OTA-C Integrator Loop Structure

Takao TSUKUTANI, Masami HIGASHIMURA, Yasutomo KINUGASA, Yasuaki SUMI, Yutaka FUKUI

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Summary :

This paper introduces a way to realize high-pass, band-stop and all-pass transfer functions using two-integrator loop structure consisting of loss-less and lossy integrators. The basic circuit configuration is constructed with five Operational Transconductance Amplifiers (OTAs) and two grounded capacitors. It is shown that the circuit can realize their circuit transfer functions by choosing the input terminals, and that the circuit parameters can also be independently set by the transconductance gains with the proportional block. Although the basic circuit configuration has been known, it seems that the feature for realizing the high-pass, the band-stop and the all-pass transfer functions makes the structure more attractive and useful. An example is given together with simulated results by PSPICE.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E86-A No.2 pp.509-512
Publication Date
2003/02/01
Publicized
Online ISSN
DOI
Type of Manuscript
LETTER
Category
Analog Signal Processing

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