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This paper deals with the robustness of low power chopped CMOS operational amplifiers (OpAMPs) to electromagnetic interferences (EMI) conducted at the device input stage. The main differences between chopped amplifiers and standard offset uncompensated ones are analyzed in terms of EMI susceptibility, achieving three main results. First, a new model is developed to show how chopping influences the...
This paper presents the development of a mixed-signal multi-functional system for current measurement and electrical stress detection. The system is composed of a tracking ADC and a double range (a coarse and a fine one) current-steering DAC. The coarse range, designed for the full-scale input values [0A:108A], has a 5b resolution and it is used for the stress detection feature. The fine range is...
This paper presents the development of a 10b ADC dedicated to the digitalization of a sensing current within advanced automotive applications. The presented ADC has been developed in a power optimized BCD technology, i.e. a process specifically optimized for power delivery and featuring signal processing capabilities. However it presents some limitations, i.e. highly non-linear capacitances, large...
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