DESIGN OF LOW-VOLTAGE AND LOW-POWER FULLY INTEGRATED FILTER BASED ON LOG-DOMAIN CURRENT-MODE INTEGRATOR

作     者：Li Shutao Wang Yaonan Wu Jie (College of Electrical and Information Engineering, Hunan University, Changsha 410082) 

作者机构：College of Electrical and Information Engineering Hunan University Changsha 

出 版 物：《Journal of Electronics(China)》 (电子科学学刊（英文版）)

年 卷 期：2001年第18卷第4期

页      码：346-350页

摘      要：In this paper a novel log-domain current-mode integrator based on MOS transistors in subthreshold is proposed. The integrator s time-constant is tunable by varying a reference bias current. By use of the integrator, a fifth-order Chebyshev lowpass filter with 0.1dB ripples is designed. The simulation results demonstrate that the proposed filter has such advantages as low power supply(1.5V), very low power dissipation (μW level), nearly ideal frequency response, very small sensitivity to components in passband, and adjustable cut-off frequency over a wide *** circuit is composed of NMOS transistors and grounded capacitors which make it suitable for fully integrated circuit implementation.

主 题 词：Current mode Log-domain filter Low voltage 

学科分类：0809[工学-计算机类] 08[工学] 

D　O　I：10.1007/s11767-001-0049-9

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