en 2-Analog Circuits Analog Circuits Research Paper Research Paper <div style="text-align: justify;"><span style="font-size:10pt"><span new="" roman="" style="font-family:" times="">A novel simplified EKV model base analog/RF CMOS design pre-SPICE tool is presented in this paper. Addition to facilitating the sizing process, this CAD tool can also optimize circuit characteristics. By having a web address, users can access it without installing any software. Using a graphical and a numerical view, the designer can select degrees of freedom and observe the MOS circuit performance. Through the use of charts versus IC, the graphical view can show</span></span><b> </b><span style="font-size:10.0pt"><span new="" roman="" style="font-family:" times="">tradeoffs in circuit performance in real-time. Charts can be displayed simultaneously in both linear and logarithmic scales. </span></span> <span cambria="" math="" style="font-family:"><m:ctrlpr></m:ctrlpr></span> <i><span style="font-size:10.0pt"><span cambria="" math="" style="font-family:"><m:r>IC</m:r></span></span></i> <i><span style="font-size:10.0pt"><span cambria="" math="" style="font-family:"><m:r>CRIT</m:r></span></span></i> <span style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="position:relative"><span style="top:2.5pt"> </span></span></span></span><b><span style="font-size:10.0pt"><span new="" roman="" style="font-family:" times="">, </span></span></b><span style="font-size:10.0pt"><span new="" roman="" style="font-family:" times="">is also available and can be displayed on the charts. This tool is not limited to one process and it is possible to select different processes. It is efficient for pre-SPICE designs, enhancing intuitive understanding and the designer&#39;s experience for future projects while eliminating the need for trial-and-error simulations. Furthermore, the predicted results align well with simulation outcomes, demonstrating the effectiveness of the design and optimization method presented. Two methodologies for selecting optimum ICs are presented by this tool. These are illustrated by the study of linearity indices, AIP3 and IIP3, in one-stage and two-stage differential amplifiers and the design of a single-ended OTA.</span></span></div> Enz Krummenacher Vittoz, Radio Frequency, Simulation Program with Integrated Circuit Emphasis, Computer-aided design, Inversion Coefficient, Critical inversion coefficient. Operational Transconductance Amplifier. 29 47 http://ijeee.iust.ac.ir/browse.php?a_code=A-10-2004-1&slc_lang=en&sid=1 Gholamreza Khademevatan g_khademevatan@sbu.ac.ir 1800319475328460017225 1800319475328460017225 No Department of Electrical Engineering, Shahid Beheshti University, Tehran, Iran. ali jalali a_jalali@sbu.ac.ir 1800319475328460017226 1800319475328460017226 Yes Department of Electrical Engineering, Shahid Beheshti University, Tehran, Iran.