High levels of design integration and increasing number of analog blocks within a system necessitate automated system-level analog test generation and fault simulation tools. We outline a methodology and toolset for specification-based automated test generation and fault simulation for analog circuits. Test generation is targeted at providing the highest coverage for each specified parameter. T...

Abstract. This paper describes Sunflower, a full-system microarchitectural evaluation environment for embedded computing systems. The environment enables detailed microarchitectural simulation of multiple instances of complete embedded systems, their peripherals, and medium access control / physical layer communication between systems. The environment models the microarchitecture, computation a...

With the increase in the complexity of systems with mixed-signal components, many systems designers recognize advantages and necessity of the mixed-signal simulation of these systems as a whole. Unfortunately, modeling and simulating such complex systems takes an enormous amount of time. The first problem identified is the speed of analog simulation. The second problem is how is difficult to wr...

Design optimization for performance enhancement in analog and mixed signal circuits is a major area of research as technology scaling is moving towards the nanometer scale. This paper presents an approach towards the characterization of mixed signal circuits using a 45nm CMOS Voltage Controlled Oscillator with frequency divider as the base line circuit. The performance characteristics of the an...

Digital Microfluidic Biochips (DMFBs) have been widely used in Lab-on-a-Chip (LoC) for disease diagnosis and treatment applications. Biological sample to be processed are originally analog continuous flow. To convert it into digital droplets for DMFB processing, a microfluidic droplet dispenser acting as an analog-to-digital converter (ADC) is needed. In this paper, a highthroughput analog-to-d...

This work deals with the simulation and discretization of continuous time models with fractional order differentiation or integration. It addresses the issue of direct discretization of analog fractional order systems followed by approximating the discretization result with an integer order transfer function or approximating the analog fractional order system with an integer analog order system...

Modeling and Simulation Aided Verification of Analog/Mixed-Signal Circuits Scott Little and Chris Myers University of Utah, Salt Lake City, UT 84112, USA {little,myers}@vlsigroup.ece.utah.edu Abstract. Analog/Mixed-signal (AMS) circuit verification is a growing problem as process variation increases and AMS circuits become more functionally complex. To improve analog verification flows, AMS cir...

Design optimization for performance enhancement in analog and mixed signal circuits is an active area of research as technology scaling is moving towards the nanometer scale. This paper presents an approach towards the efficient simulation and characterization of mixed signal circuits, using a 45nm CMOS voltage controlled oscillator (VCO) with frequency divider as a case study. The performance ...

Today's increasing emphasis on simulation of continuous dynamic systems lends a special significance to this issue of Computer. Hybrid computers, with their tremendous computing speed resulting from the all-parallel configuration of their analog subsystem, are particularly suited for dynamic system simulation. Indeed, back in the 1950's analog computers were the only game in town when it came t...