A high-linear wide-tunable CMOS transconductor for video frequency applications

被引：1

作者：

Calvo, B ^{[1
]}

Celma, S ^{[1
]}

Sanz, T ^{[1
]}

Martínez, PA ^{[1
]}

机构：

[1] Univ Zaragoza, Fac Sci, Dept Elect Commun Engn, Grp Elect Design, E-50009 Zaragoza, Spain

来源：

MICROELECTRONICS RELIABILITY | 2004年 / 44卷 / 07期

关键词：

analogue design; CMOS integrated circuits; continuous-time G(m)-C filters;

D O I：

10.1016/j.microrel.2004.03.006

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper a new CMOS transconductor structure based on a g(m)-boosted degenerated differential pair is presented for applications in the video frequency range. The proposed circuit combines two techniques, a switchable array of source degenerating MOS resistors and a programmable output current mirror, in order to widen the G(m) tuning range while maintaining linearity. Degeneration MOS resistors are made common-mode voltage independent thanks to a simple control circuit. Post-layout simulation results from a 0.35 mum design supplied at 3.3 V show a wide tuning range (10-100 MHz), good linearity (-58.4 dB for an output signal voltage of 1.1 Vp-p) and low excess phase (<0.5degrees over the whole tuning range). (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1189 / 1198

页数：10

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