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Analog-to-digital converters. --- Digital-to-analog converters. --- Analog-to-digital converters --- Digital-to-analog converters --- Converters, Digital-to-analog --- Digital electronics --- Hybrid computers --- Analog-digital converters --- Analog electronic systems --- Computer input-output equipment --- Electronic data processing

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Analog-to-digital converters --- Digital-to-analog converters --- Convertisseurs analogiques numériques --- Convertisseurs numérique-analogique --- A/D omzettingen --- D/A omzetting --- conversie --- elektronica --- elektrotechniek --- schenking Willy Van Ingelgom --- Convertisseurs analogiques numériques --- Convertisseurs numérique-analogique --- Analog-digital converters --- Analog electronic systems --- Computer input-output equipment --- Digital electronics --- Electronic data processing --- Converters, Digital-to-analog --- Hybrid computers

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Methodology for the Digital Calibration of Analog Circuits and Systems shows how to relax the extreme design constraints in analog circuits, allowing the realization of high-precision systems even with low-performance components. A complete methodology is proposed, and three applications are detailed. To start with, an in-depth analysis of existing compensation techniques for analog circuit imperfections is carried out. The M/2+M sub-binary digital-to-analog converter is thoroughly studied, and the use of this very low-area circuit in conjunction with a successive approximations algorithm for digital compensation is described. A complete methodology based on this compensation circuit and algorithm is then proposed. The detection and correction of analog circuit imperfections is studied, and a simulation tool allowing the transparent simulation of analog circuits with automatic compensation blocks is introduced. The first application shows how the sub-binary M/2+M structure can be employed as a conventional digital-to-analog converter if two calibration and radix conversion algorithms are implemented. The second application, a SOI 1T DRAM, is then presented. A digital algorithm chooses a suitable reference value that compensates several circuit imperfections together, from the sense amplifier offset to the dispersion of the memory read currents. The third application is the calibration of the sensitivity of a current measurement microsystem based on a Hall magnetic field sensor. Using a variant of the chopper modulation, the spinning current technique, combined with a second modulation of a reference signal, the sensitivity of the complete system is continuously measured without interrupting normal operation. A thermal drift lower than 50 ppm/°C is achieved, which is 6 to 10 times less than in state-of-the-art implementations. Furthermore, the calibration technique also compensates drifts due to mechanical stresses and ageing.

Electronic circuits. --- Analog electronic systems --- Digital-to-analog converters. --- Calibration. --- Electron-tube circuits --- Electric circuits --- Electron tubes --- Electronics --- Converters, Digital-to-analog --- Digital electronics --- Hybrid computers --- Systems engineering. --- Computer engineering. --- Electronics. --- Circuits and Systems. --- Electrical Engineering. --- Electronics and Microelectronics, Instrumentation. --- Electrical engineering --- Physical sciences --- Computers --- Engineering systems --- System engineering --- Engineering --- Industrial engineering --- System analysis --- Design and construction --- Electrical engineering. --- Microelectronics. --- Microminiature electronic equipment --- Microminiaturization (Electronics) --- Microtechnology --- Semiconductors --- Miniature electronic equipment --- Electric engineering

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While technology evolution is beneficial for digital circuits, it can cause performance limitations for analog circuits. To benefit from the technology evolution for analog circuits as well, the smart concept aims at improving the analog performance by using digital intelligence. In Smart AD and DA Conversion, the smart concept is applied to AD and DA converters by using on-chip intelligence to detect analog imperfections and to correct for them. First, general trends and challenges in data converter design are studied and a generalized view on smart conversion is introduced. Then, the smart concept is applied to solve specific imperfections in two design examples: a sub-binary variable-radix current-steering DA converter and a time-interleaved open-loop track&hold circuit. In both cases, the developed concepts are supported by theory and implemented test chips. The examples show that the smart concept can be successfully applied to improve the performance of AD and DA converters with respect to chip area, power consumption, static accuracy and/or dynamic accuracy.

Analog-to-digital converters. --- Digital-to-analog converters. --- Analog-to-digital converters --- Digital-to-analog converters --- Electrical & Computer Engineering --- Engineering & Applied Sciences --- Electrical Engineering --- Converters, Digital-to-analog --- Analog-digital converters --- Engineering. --- Solid state physics. --- Electronic circuits. --- Circuits and Systems. --- Solid State Physics. --- Digital electronics --- Hybrid computers --- Analog electronic systems --- Computer input-output equipment --- Electronic data processing --- Systems engineering. --- Engineering systems --- System engineering --- Engineering --- Industrial engineering --- System analysis --- Design and construction --- Physics --- Solids --- Electron-tube circuits --- Electric circuits --- Electron tubes --- Electronics

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621.3'7 --- Analog-to-digital converters --- -Digital-to-analog converters --- -Integrated circuits --- Chips (Electronics) --- Circuits, Integrated --- Computer chips --- Microchips --- Electronic circuits --- Microelectronics --- Converters, Digital-to-analog --- Digital electronics --- Hybrid computers --- Analog-digital converters --- Analog electronic systems --- Computer input-output equipment --- Electronic data processing --- Electrical engineering--?'7 --- Addresses, essays, lectures --- Addresses, essays, lectures. --- Analog-to-digital converters. --- Digital-to-analog converters. --- Integrated circuits. --- 621.3'7 Electrical engineering--?'7 --- Digital-to-analog converters --- Integrated circuits