Synthesis of Log-Domain Filters from First-Order Building Blocks

被引：0
|
作者：
R. Timothy Edwards
Gert Cauwenberghs
机构：
[1] Johns Hopkins University,Electrical and Computer Engineering
[2] Johns Hopkins University,Electrical and Computer Engineering
来源：
Analog Integrated Circuits and Signal Processing | 2000年 / 22卷
关键词：
log-domain filters; filterbanks; current-mode analog VLSI;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Log-domain filters are an important class of current-mode circuits having large-signal linearity and increased tuning range over voltage-mode filter circuits of similar complexity. In this paper we describe synthesis of a single-ended, first-order filter circuit from static and dynamic translinear circuit principles, and show how higher-order filters can be easily constructed from the first-order building block. We address additional issues related to low-frequency (audio-frequency) filter design and present results measured from test circuits and a complete 15-channel filterbank system fabricated in 2 μm and 1.2 μm BiCMOS processes.
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页码：177 / 186
页数：9
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