3 research outputs found

    An Incremental ADC Sensor Interface with Input Switch-Less Integrator Featuring 220-nVRMS Resolution with 30-mV Input Range

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    An incremental ADC for Wheatstone CMOS stress sensor systems is described. A switched-capacitors integrator without switches toward virtual ground avoids spur signals, clock feed-through, residual oset and glitches. The circuit, fabricated in a 0.35-um CMOS technology, consumes 42uW at 500-kHz clock and 2.8-V supply. Low speed chopping cancels offset and limits the 1/f noise contribution. The signal-to-noise ratio with measures lasting 2^20 periods is 114 dB at plus-minus 100 mV full-scale range. The active area is 0.32 mm^2

    EUROSENSORS XVII : book of abstracts

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    Fundação Calouste Gulbenkien (FCG).Fundação para a Ciência e a Tecnologia (FCT)
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