Search results for "Circuits integrats"

showing 2 items of 2 documents

Quasi‐digital front‐ends for current measurement in integrated circuits with giant magnetoresistance technology

2014

In this study, the authors report on two different electronic interfaces for low-power integrated circuits electric current monitoring through current-to-frequency (I-f) conversion schemes. This proposal displays the intrinsic advantages of the quasi-digital systems regarding direct interfacing and self-calibrating capabilities. In addition, as current-sensing devices, they have made use of the giant magnetoresistance (GMR) technology because of its high sensitivity and compatibility with standard complementary metal oxide semiconductor processes. Single elements and Wheatstone bridges based on spin-valves and magnetic tunnel junctions have been considered. In this sense, schematic-level si…

ModulationResistive sensorsEngineeringWheatstone bridgebusiness.industryElectrical engineeringControl and Systems Engineering; Electrical and Electronic EngineeringIntegrated circuitsGiant magnetoresistance:Enginyeria electrònica::Microelectrònica::Circuits integrats [Àrees temàtiques de la UPC]Integrated circuitInterfacelaw.inventionPrinted circuit boardCMOSControl and Systems EngineeringlawInterfacingLow-power electronicsLow-powerCircuits integratsElectrical and Electronic EngineeringElectric currentbusinessIET Circuits, Devices & Systems
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Digital background calibration algorithm and its FPGA implementation for timing mismatch correction of time-interleaved ADC

2019

Sample time error can degrade the performance of time-interleaved analog to digital converters (TIADCs). A fully digital background algorithm is presented in this paper to estimate and correct the timing mismatch errors between four interleaved channels, together with its hardware implementation. The proposed algorithm provides low computation burden and high performance. It is based on the simplified representation of the coefficients of the Lagrange interpolator. Simulation results show that it can suppress error tones in all of the Nyquist band. Results show that, for a four-channel TIADC with 10-bit resolution, the proposed algorithm improves the signal to noise and distortion ratio (SN…

Spurious-free dynamic rangeEnginyeria elèctricaComputer scienceDynamic rangeComputation020208 electrical & electronic engineering020206 networking & telecommunications02 engineering and technologySurfaces Coatings and FilmsData acquisitionHardware and ArchitectureSignal Processing0202 electrical engineering electronic engineering information engineeringElectronic engineeringNyquist–Shannon sampling theoremCircuits integratsSystem timeField-programmable gate arrayCommunication channel
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