A 0.2V, 7.5 μW, 20 kHz ΣΔ modulator with 69 dB SNR in 90 nm CMOS

Ulrik Sørensen Wismar, D Wisland, Pietro Andreani

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Abstract

This paper presents a frequency-to-digital SigmaDelta modulator designed in a digital 90nm CMOS process, operating with a supply voltage of 0.2 V. For a 7.5 muW power consumption, the SNR is 68.9 dB and the SNDR is 60.3 dB over a 20Hz-20kHz bandwidth. This work shows that the SNR/SNDR performance of this kind of SigmaDelta converter can be adjusted over a wide range, while maintaining a state-of-the-art flgure-of-merit of 82 fJ/conversion.
Original languageEnglish
Title of host publicationESSCIRC 33rd European Solid State Circuits Conference, 2007.
PublisherIEEE
Publication date2007
Pages206-209
ISBN (Print)978-1-4244-1125-2
DOIs
Publication statusPublished - 2007
EventESSCIRC 33rd European Solid State Circuits Conference, 2007. -
Duration: 1 Jan 2007 → …

Conference

ConferenceESSCIRC 33rd European Solid State Circuits Conference, 2007.
Period01/01/2007 → …

Bibliographical note

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