A 500mV, 118nW, Σ;Δ-Modulator ADC for Audio Detection in 28 nm FD-SOI

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

In this work a 500 mV supply voltage, low power, inverter-based Σ Δ-modulator in 28 nm FD-SOI is presented. The discrete-time Σ Δ-modulator is optimized for low power and is to be used in audio detection applications. The switched-capacitor integrators are designed using inverter-based amplifiers with a DC cancelling scheme to suppress DC offset. An optimization of the inverter-based amplifiers is shown taking advantage of the simple structure. The 2nd-order Σ Δ-modulator achieves a SNDRpeak=46dB with an OSR of 32 and power consumption of 118nW.

Original languageEnglish
Title of host publicationProceedings of 2019 IEEE Nordic Circuits and Systems Conference, NORCAS 2019 : NORCHIP and International Symposium of System-on-Chip, SoC 2019
EditorsJari Nurmi, Peeter Ellervee, Kari Halonen, Juha Roning
PublisherIEEE
Publication date1 Oct 2019
Article number8906910
ISBN (Electronic)9781728127699
DOIs
Publication statusPublished - 1 Oct 2019
Event5th IEEE Nordic Circuits and Systems Conference, NORCAS 2019: NORCHIP and International Symposium of System-on-Chip, SoC 2019 - Helsinki, Finland
Duration: 29 Oct 201930 Oct 2019

Conference

Conference5th IEEE Nordic Circuits and Systems Conference, NORCAS 2019: NORCHIP and International Symposium of System-on-Chip, SoC 2019
CountryFinland
CityHelsinki
Period29/10/201930/10/2019
SponsorIEEE, IEEE, Tampere University
Series2019 IEEE Nordic Circuits and Systems Conference, NORCAS 2019: NORCHIP and International Symposium of System-on-Chip, SoC 2019 - Proceedings

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