CMOS Op-Amp Power Optimization in All Regions of Inversion Using Geometric Programming

被引：0

作者：

Aguirre, Pablo ^{[1
]}

Silveira, Fernando ^{[1
]}

机构：

[1] Univ Republica, Inst Ing Elect, Fac Ingn, Montevideo, Uruguay

来源：

SBCCI 2008: 21ST SYMPOSIUM ON INTEGRATED CIRCUITS AND SYSTEMS DESIGN, PROCEEDINGS | 2008年

关键词：

Analog; Automatic Design; CMOS; Geometric Programming; Optimization;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper Geometric Programming is successfully applied to the power optimization of CMOS operational amplifiers using a model valid in all regions of inversion (weak, moderate and strong), which assures a true globally optimal design. A complete transistor model presents some problems on the formulation of the Geometric Program. We will show in this paper that in the case of power optimization, a careful analysis of the physical meaning of the conflicting model equations, allow us to overcome these problems in a simple and efficient way. The proposed algorithm is tested in several cases for a Miller amplifier, showing how the optimum inversion level spans all the inversion regions as the target bandwidth changes.

引用

页码：152 / 157

页数：6

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