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| Title: | CMOS op-amp power optimization in all regions of inversion using geometric programming |
| Authors: | Silveira, Fernando Aguirre, Pablo |
| Type: | Preprint |
| Keywords: | Analog, Automatic design, CMOS, Geometric programming, Optimization |
| Descriptors: | Electrónica |
| Issue Date: | 2008 |
| Abstract: | 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 conicting 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 |
| Citation: | Aguirre, P., Silveira, F. CMOS op-amp power optimization in all regions of inversion using geometric programming [Preprint] Publicado en SBCCI '08 Proceedings of the 21st annual symposium on Integrated circuits and system design, Gramado, Brazil, 2008. doi 10.1145/1404371.1404416 |
| Academic department: | Electrónica |
| Investigation group: | Microelectrónica |
| Appears in Collections: | Publicaciones académicas y científicas - Instituto de Ingeniería Eléctrica |
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