MOSFET Instantaneous Companding Integrator

Nobukazu TAKAI  Ken-ichi TAKANO  Shigetaka TAKAGI  Nobuo FUJII  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E84-A   No.2   pp.545-551
Publication Date: 2001/02/01
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: Special Section PAPER (Special Section on Analog Circuit Techniques Supporting the System LSI Era)
MOSFET,  companding circuit,  integrator,  

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In current-mode signal processing, a companding integrator is attractive from the viewpoint of linearity under a low power supply voltage. In this paper, new instantaneous companding integrators using MOSFET's are proposed. The companding integrator utilizes a nature of MOSFET square law. HSPICE simulation results demonstrate several advantages of the proposed circuits.