<Electrical and Electronic Circuit, LSI>
Second-order Predictive ADC using a Capacitor Array DAC
2018 Volume 138 Issue 1 Pages 29-36
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2018 Volume 138 Issue 1 Pages 29-36
The on-board microphone with MEMS technology as the condenser microphone is used widely for audio interfaces. We propose the second-order predictive ADC that converts the charge to the digital code directly, without the charge to voltage conversion circuit. In this paper, we show the performance of this ADC using the capacitor array DAC and the DEM method. By the simulation using BASIC programming language, we confirmed that the DEM method improves the SNR degradation.
The transactions of the Institute of Electrical Engineers of Japan.C
The Journal of the Institute of Electrical Engineers of Japan
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