European Microwave Integrated Circuits Conference · 2009 · 21 citations · 6 references
EngineeringElectrical EngineeringAnalog ElectronicsMicroelectronicsVariable Rate TechnologyAnalog Integrated CircuitsClock ManagementCmos Circuit DesignMixed-signal Integrated Circuit DesignMixed-signal IntegrationTiming AnalysisAnalog-digital ConversionAnalog-to-digital ConversionAnalog-to-digital Converter DesignAnalog-to-digital ConvertersCmos Analog Circuit DesignCmos Analog Integrated CircuitsTime ConversionVoltage-dependent Delay
A voltage-to-time converter (VTC) is presented for use in a time-based analog-to-digital converter (ADC). The converter runs with a 5 GHz input clock to provide a maximum conversion rate of 5 GS/s. A novel architecture enables the VTC to provide an adjustable linear delay versus input voltage characteristic. The circuit is realized in a 90nm CMOS process. After calibration, the converter achieves better than 3.7 effective bits for input frequencies up to 1.75 GHz, making it suitable for use in a time-based ADC with up to 4-bit resolution.
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A 2.2mW 5b 1.75GS/s Folding Flash ADC in 90nm Digital CMOS
Bob Verbruggen, Jan Craninckx, Maarten Kuijk et al. · 2008 · 74 citations
Engineering, Computer Engineering, Electrical Engineering +17