Dynamic currents in log-domain filters

被引：0

作者：

Fox, RM ^{[1
]}

Ko, HJ ^{[1
]}

Eisenstadt, WR ^{[1
]}

机构：

[1] Univ Florida, Dept Elect & Comp Engn, Gainesville, FL 32611 USA

来源：

42ND MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, PROCEEDINGS, VOLS 1 AND 2 | 1999年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Single-ended log-domain filters must operate Class A: the amplitude of any symmetric signal must be less than the bias current. Even so, internal dynamic current requirements can be much higher than the bias currents. Worst-case peak current demands are related to modulation index by simple expressions that allow transistor geometries to be optimized for specified signal levels. Some circuit topologies are shown to be better able to supply large internal currents than others.

引用

页码：964 / 967

页数：4

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