Advances in Radio Science www.adv-radio-sci.net 1684-9965 1684-9973 7 Kleinheubacher Berichte 2008 2009 10.5194/ars-7-219-2009 http://www.adv-radio-sci.net/7/219/2009/ http://www.adv-radio-sci.net/7/219/2009/ars-7-219-2009.html http://www.adv-radio-sci.net/7/219/2009/ars-7-219-2009.pdf 219 223 2009-05-19 A novel technique for CAD-optimization of analog circuits with bipolar transistors B. Dimov boyko.dimov@imms.de V. Boos T. Reich Ch. Lang E. Hennig R. Sommer Institut für Mikroelektronik- und Mechatronik-Systeme gGmbH, Ilmenau, Germany In this paper, a novel approach for robust automatic optimization of analog circuits with bipolar transistors is presented. It includes additional formal parameters into the device model cards, which sweep the model parameters smoothly between the different device types. In this way, not only the sizing, but also the choice of the device type is committed to the optimization tool, thus improving the efficiency of the design process significantly. Berkner, J.: Kompaktmodelle fuer Bipolartransistoren, expert verlag, 2002. Cadence Design Systems: Virtuoso NeoCircuit Circuit Sizing and Optimization, http://www.cadence.com/products/custom_ic/neocircuit/index.aspx, 2008. Dimov, B., Hennig, E., Lang, Ch., and Sommer, R.: Direct Performance Evaluation of Bipolar Transistor Devices for Analog Circuit Design, Proc. X$^\rm th$ Int. Workshop on Symbolic and Numeric Methods, Modeling and Applications to Circuit Design SMACD'08, 49–55, 2008. Furth, P. M. and Andreou, A. G.: A High-Drive Low-Power BiCMOS Buffer Using Compound PMOS / NPN Transistors, Proc. 36th Midwest Symposium on Circuits and Systems, 2, 1369–1372, 1993. Graeb, H.: Analog Design Centering and Sizing, Springer, 2007. Gummel, H. K. and Poon H. C.: An Integral Charge Control Model of Bipolar Transistors, AT&T Tech. J., 49, 827–852, 1970. MunEDA GmbH: WiCkeD Tool Suite, http://www.muneda.com, 2008. Wolfram Research: Mathematica 6, http://www.wolfram.com/products/mathematica/index.html, 2008. X-FAB Semiconductor Foundries AG: Design Kit Documentation, http://www.xfab.com/fileadmin/X-FAB/Download_Center/Technology/BiCMOS/XB06_Data_sheet.pdf, 2008.