A log-domain CMOS transcapacitor:: Design, analysis and applications

被引：2

作者：

Fragnière, E ^{[1
]}

Vittoz, E

Van Schaik, AA

机构：

[1] Swiss Ctr Elect & Microtechnol, CSEM, Neuchatel, Switzerland

[2] Univ Sydney, Sch Elect & Informat Engn, Sydney, NSW 2006, Australia

来源：

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

关键词：

log-domain processing; pseudo-voltage; reactive components; transcapacitor; weak inversion CMOS;

D O I：

10.1023/A:1008378027003

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

We present in this paper the CMOS implementation of a transcapacitor working in the log-domain. This circuit integrates a differential input current into an output pseudo-voltage, which is similar to the compressed voltage used as the internal variable in companding filters. This log-domain transcapacitor is compatible with pseudo-conductances implemented with a single transistor. The pseudo-transcapacitor circuit is analyzed and a collection of log-domain reactive components and small circuits using it is proposed.

引用

页码：195 / 208

页数：14

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