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In this paper a 13b incremental A/D converter for high-linearity sensors read-out applications is described and characterized. The incremental solution is preferred to traditional SigmaDelta architectures to simplify the decimator filter topology, which is actually a single bit digital accumulator. This leads to lower area occupancy and power consumption. The input signal, which can be connected either...
In this paper an integrated wide-dynamic-range interface circuit for resistive gas-sensors arrays is presented. The proposed device consists of a multiscale transresistance continuous time amplifier followed by a 13-bit incremental A/D converter. The circuit selects automatically the scale to use for each measurement and includes two digital-to-analog converters for the calibration of offset and gain...
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