EXTENDING DIGITAL INPUT/OUTPUT CAPABILITIES TO LOW-COST AND NON-LINEAR A/D CONVERSION

J. M. Dias Pereira, O. Postolache, A. Cruz Serra, P. Silva Girão

Abstract

A pulse width modulated analogue-to-digital converter (ADC) that provides a low-cost solution for lowspeed applications is described. The proposed solution also provides automatic range selection and continuous auto-calibration capabilities. Simulation and experimental results are used to confirm the theoretical expectations of this ADC well adapted to strongly non-linear transducer interfacing.

Keywords

analogue-to-digital conversion, non-linear ADC, transducers

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IMEKO-TC4-2001-103.pdf

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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