A Log-Domain CMOS Transcapacitor: Design, Analysis and Applications

被引：0
|
作者：
Eric Fragnie`re
Eric Vittoz
Andre´ van Schaik
机构：
[1] CSEM,School of Electrical and Information Engineering
[2] Swiss Center for Electronics and Microtechnology,undefined
[3] The University of Sydney,undefined
来源：
Analog Integrated Circuits and Signal Processing | 2000年 / 22卷
关键词：
log-domain processing; pseudo-voltage; reactive components; transcapacitor; weak inversion CMOS;
D O I：
暂无
中图分类号：
学科分类号：
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.
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页码：195 / 208
页数：13
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