Low-voltage differential voltage follower for WTA and fully differential applications

IEICE Electronics Express

Ivan Padilla-Cantoya²  Paul M. Furth⁴  Jesus E. Molinar-Solis³  Alejandro Diaz-Sanchez¹ 

[1] National Institute for Astrophysics, Optics and Electronics, INAOE;Departamento de Electronica, Sistemas e Informatica DESI, Instituto Tecnologico y de Estudios Superiores de Occidente ITESO;Facultad de Ingenieria, Universidad Autonoma del Estado de Mexico UAEM;Klipsch School of Electrical and Computer Engineering, New Mexico State University

关键词: analog CMOS integrated circuits;    winner-take-all (WTA) analog circuits;   

DOI  :  10.1587/elex.9.491

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(3)A low-voltage differential version of a high performance voltage follower is presented. The proposed circuit is very compact, and symmetric with respect to the input devices. Both differential input devices are enhanced by local shunt feedback, increasing the gain and, thus, reducing the output resistance for higher precision. The circuit has proved useful as a winner-take-all (WTA) circuit. It also features operation as a fully differential amplifier with low supply voltage requirements close to a transistor's threshold voltage. Experimental results verifying the operation of the proposed structure are provided.

【 授权许可】

Unknown