Synthesis of log-domain filters from first-order building blocks

被引：16

作者：

Edwards, RT ^{[1
]}

Cauwenberghs, G ^{[1
]}

机构：

[1] Johns Hopkins Univ, Baltimore, MD 21218 USA

来源：

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2000年 / 22卷 / 2-3期

关键词：

log-domain filters; filterbanks; current-mode analog VLSI;

D O I：

10.1023/A:1008373826094

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

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 mu m and 1.2 mu m BiCMOS processes.

引用

页码：177 / 186

页数：10

共 13 条

[1]

DRAKAKIS EM, 1997, P IEEE INT S CIRC SY, V1, P501

[2]

EDWARDS RT, 1997, P ISCAS 97, V1, P621

[3]

FOX R, 1997, P IEEE INT S CIRC SY, V1, P341

[4] Log domain filtering for RF applications [J].