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IEICE TRANSACTIONS on Fundamentals

CMOS Tunable 1/x Circuit and Its Applications

Weihsing LIU, Shen-Iuan LIU

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Summary :

A new CMOS 1/x circuit is presented in this letter. The output amplitude of the proposed circuit can be adjusted by a bias current. The proposed circuit can be used to realize a current-to-voltage converter and a current-mode divider. The proposed circuits have been fabricated in a 0.5 µm CMOS process. Experimental results show that under the linear error less than 1%, the input range of the proposed 1/x circuit can be up to 1.5 V for the supply voltages of 1.5 V and the power dissipation is 0.24 mW. The experimental results are given to demonstrate the proposed circuits.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E86-A No.7 pp.1896-1899
Publication Date
2003/07/01
Publicized
Online ISSN
DOI
Type of Manuscript
LETTER
Category
Circuit Theory

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