High dynamic-range, self-tuned Gm-C filter for video-range applications

被引：0
|
作者：
Shanjani, P.H. [1 ]
Atarodi, M. [1 ]
机构：
[1] Sharif Univ of Technology, Tehran, Iran
来源：
Proceedings - IEEE International Symposium on Circuits and Systems | 1999年 / 2卷
关键词：
Capacitors - CMOS integrated circuits - Computer simulation - Electric potential - Electric resistance - Transconductance - Transistors - Triodes - Tuning;
D O I：
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学科分类号：
摘要：
A 10-MHz, sixth-order elliptic filter is realized by maximum dynamic range biquads composed of very low-distortion transconductors. Based on precise simulations, THD of transconductors is lower than -70dB at 10-MHz for 3 VPP input voltage. For tuning of this filter, an on-chip frequency tuning system is used and also a new Q tuning method based on compensation of transconductors phase shift by variable output resistance of transconductors. All circuits are aimed to be fabricated on a standard 2μ CMOS process using single 5v supply.
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