Vishnu Unnikrishnan

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©2014 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. Abstract—Synthesizable(More)
The paper investigates the use of the existing CAD framework for digital circuit synthesis to design and synthesize a select set of mixed-signal functions like analog-to-digital and digital-to-analog conversions. This approach leads to fast and low cost design of technology portable system-on-chip solutions with analog interfaces. Some circuit examples for(More)
Internet of things (IoT) benefits from fast and low cost development of technology portable re-configurable hardware. Low power consumption is desired for applications operating from harvested or limited energy. Subthreshold operation of VCO-based ADCs is investigated in this work in order to meet these challenges. A ring VCO built using NAND gates is used(More)
VCO-based ADC is an attractive candidate for the synthesis of all-digital ADCs using standard cells. However, the non-linearity of a synthesizable VCO requires digital postprocessing to obtain good performance. We propose another solution where the input analog signal is pre-coded into a delta-modulated pulse stream which is used to drive a VCO-based(More)
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