Low-voltage differentiator for VHF filtering

被引：5

作者：

Aldea, C ^{[1
]}

Celma, S ^{[1
]}

Otín, A ^{[1
]}

机构：

[1] Univ Zaragoza, Fac Ciencias, Dept Ingn Elect & Comun, Area Elect,Grp Diseno Elect, E-50009 Zaragoza, Spain

来源：

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2002年 / 33卷 / 02期

关键词：

G(m)-C differentiator; current-mode processing; VHF filters; CMOS analogue circuits;

D O I：

10.1023/A:1021207813469

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper a G(m)-C resonator circuit is proposed which is based on a new current-mode differentiating concept, compatible with low voltage and very high frequency operation. A prototype 4th-order 200 MHz band pass filter has been fabricated using a 0.8 mum CMOS process and shows a side-band rejection lower than -80 dB. This response confirms the feasibility of the proposed resonator in very-high frequency applications such as IF band pass sections of RF front-end circuits. The filter consumes less than 5.5 mW from a 2.7 V supply and the measured dynamic range is 57 dB at IM3 of 0.5%, where the active area is 0.12 mm(2).

引用

页码：107 / 116

页数：10