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A SIMULATION AND PERFORMANCE ESTIMATION SYSTEM FOR ANALOG AND MIXED SIGNAL SYSTEMS

YELAMANCHILI, VEENA RAO

Abstract Details

2003, MS, University of Cincinnati, Engineering : Computer Engineering.
High performance analog/mixed signal systems play a wide role in signal acquisition and conditioning for front and back end designs. Circuit designers have been developing many such systems using various synthesis flows. The ultimate goal of any synthesis flow is to determine the optimal design implementation that can satisfy the system behavior and constraints. To achieve this objective, components of a circuit are assigned dimensions and, tested for ambiance dependent conditions. The quality of mixed signal systems is quantified by performance parameters like gain, cmrr, unitygain etc. Most of the evaluation strategies depend on the results produced by simulators. Hence, one approach for validation for performance parameters is to repeat the testing procedure across multiple simulators. However, due to the differences among simulators and their data representation, the user needs to develop simulator specific evaluation techniques. This process is time consuming and redundant. An attempt to minimize the issues of multiple simulators and create a unified approach to develop evaluation techniques is the primary objective in design of Performance Analysis System (PAS). PAS is developed to analyze and evaluate various performance parameters of analog and mixed-signal circuits. A Circuit Definition file is defined in VS format and contains details about circuit components. A Parameter file, also written in VS format, contains the analysis conditoins needed to obtain simulation data for the evaluation of the performance parameters. The Circuit Definition file and Parameter file are inputs to a Virtual Simulator which is an abstract simulation tool that maps into one of the four simulators, Ngspice, Spectre, Hspice or Macro modeler, and outputs the post analysis simulation data. The raw simulation data that is obtained is given as input to a three layered data storage system. To access this data, a set of Access functions are developed and made available to the user. These functions aid a designer in obtaining any information needed from the simulation data. Using the Access functions, a analog model library is developed that includes models for performance parameters. PAS is further extended to include a layout generator to generate circuit with parasitics prior to simulations. PAS handles circuits of all sizes and evaluates any number of performance parameters at once. PAS is tested extensively on a set of benchmarks using each of the integrated simulators and the results indicate that the performance models developed are accurate and are evaluated with less execution time.
Dr. Ranga Vemuri (Advisor)

Recommended Citations

Citations

  • YELAMANCHILI, V. R. (2003). A SIMULATION AND PERFORMANCE ESTIMATION SYSTEM FOR ANALOG AND MIXED SIGNAL SYSTEMS [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1068671449

    APA Style (7th edition)

  • YELAMANCHILI, VEENA. A SIMULATION AND PERFORMANCE ESTIMATION SYSTEM FOR ANALOG AND MIXED SIGNAL SYSTEMS. 2003. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1068671449.

    MLA Style (8th edition)

  • YELAMANCHILI, VEENA. "A SIMULATION AND PERFORMANCE ESTIMATION SYSTEM FOR ANALOG AND MIXED SIGNAL SYSTEMS." Master's thesis, University of Cincinnati, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1068671449

    Chicago Manual of Style (17th edition)