A low-voltage BiCMOS transconductor with improved linearity for VHF continuous-time filters

被引：0
|
作者：
Tsung-Sum Lee
机构：
[1] National Yunlin University of Science and Technology,Department of Electronic Engineering
来源：
Circuits, Systems and Signal Processing | 2001年 / 20卷
关键词：
Transconductor; continuous-time filters;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A new low-voltage Bipolar Complementary Metal Oxide Semiconductor (BiCMOS) triode transconductor with improved linearity suitable for very-high frequency continuous-time filters is proposed. The transconductance is tunable with a control voltage. Improved linearity is achieved using a translinear cross-coupled circuit that suppresses the major cause of nonlinearity. The output resistance of the transconductor is compensated, and the resulting output resistance can be fine-tuned by means of a separate voltage. The transconductor has a large bandwidth due to its parasitic poles that are at extremely high frequencies. The performance of the transconductor is demonstrated by simulation results.
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页码：27 / 36
页数：9
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