Second-order predictive ADC using a capacitor array DAC

Riku Yonekawa; Yuji Inagaki; Eri Ioka; Yasuhide Takase; Yasuyuki Matsuya

doi:10.1541/ieejeiss.138.29

Second-order predictive ADC using a capacitor array DAC

Riku Yonekawa, Yuji Inagaki, Eri Ioka, Yasuhide Takase, Yasuyuki Matsuya

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	29-36
Number of pages	8
Journal	IEEJ Transactions on Electronics, Information and Systems
Volume	138
Issue number	1
DOIs	https://doi.org/10.1541/ieejeiss.138.29
Publication status	Published - 2018
Externally published	Yes

Keywords

Amp-less
Capacitor array DAC
DEM
Predictive ADC

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1541/ieejeiss.138.29

Cite this

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abstract = "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.",

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AU - Inagaki, Yuji

AU - Ioka, Eri

AU - Takase, Yasuhide

AU - Matsuya, Yasuyuki

PY - 2018

Y1 - 2018

N2 - 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.

AB - 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.

KW - Amp-less

KW - Capacitor array DAC

KW - DEM

KW - Predictive ADC

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Second-order predictive ADC using a capacitor array DAC

Abstract

Keywords

ASJC Scopus subject areas

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