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In this paper we present a complete low-voltage, low-power and high linearity CMOS interface circuit for fluxgate magnetic sensors for current measurement applications. The integrated circuit provides the correct excitation signal to the fluxgate sensors and reads-out the sensor signals from the sensing coils. The proposed circuit allows us to deal with sensors featuring different values of the excitation...
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...
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