A 250MHz Gm-C filter using negative current feedback OTAs

Tien Yu Lo*, Chih Lung Kuo, Chung-Chih Hung, Chi Hsiang Lo

*此作品的通信作者

研究成果: Conference contribution同行評審

1 引文 斯高帕斯(Scopus)

摘要

A CMOS fourth-order linear phase low-pass filter used for high speed wireless/wireline system is realized in 0.18-m CMOS process. The high speed filter is designed based on operational transconductance amplifier (OTA) biquad sections. As well known, large transconductance is required for high speed applications, and thu. The conventional source degeneration topology, which operates wit. The trade-off of linearity and transconductance, is not suitable. In this paper. The proposed OTA us. The negative current feedback topology to maintain linearity for high speed application. By usin. The proposed OTA as a building block, a 4-th order low-pass filter is realized. Fabricating in 0.18-m CMOS technology. The -3dB filter frequency response at 250MHz is measured. The measured HD3 performance is about -40dB an. The group delay variation is less than 5ns at the filter -3dB cutoff frequency.

原文English
主出版物標題2009 16th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2009
頁面367-370
頁數4
DOIs
出版狀態Published - 1 12月 2009
事件2009 16th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2009 - Yasmine Hammamet, Tunisia
持續時間: 13 12月 200916 12月 2009

出版系列

名字2009 16th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2009

Conference

Conference2009 16th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2009
國家/地區Tunisia
城市Yasmine Hammamet
期間13/12/0916/12/09

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