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A Low Power Continuous-Time Zoom ADC for Audio Applications

Conference Paper (2019)
Author(s)

B. Gonen (TU Delft - Electronic Instrumentation)

Shoubhik Karmakar (Student TU Delft)

R. van Veldhoven (NXP Semiconductors)

K. A.A. Makinwa (TU Delft - Microelectronics)

Research Group
Electronic Instrumentation
Copyright
© 2019 B. Gonen, Shoubhik Karmakar, Robert Van Veldhoven, K.A.A. Makinwa
DOI related publication
https://doi.org/10.23919/VLSIC.2019.8778021
More Info
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Publication Year
2019
Language
English
Copyright
© 2019 B. Gonen, Shoubhik Karmakar, Robert Van Veldhoven, K.A.A. Makinwa
Research Group
Electronic Instrumentation
Bibliographical Note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. @en
Pages (from-to)
C224-C225
ISBN (print)
978-1-7281-0914-5
ISBN (electronic)
978-4-86348-720-8
Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Abstract

This paper presents a continuous-time (CT) zoom ADC for use in audio applications. Compared to previous zoom ADCs, its input impedance is mainly resistive, making it much easier to drive while still maintaining high energy efficiency. The prototype is fabricated in a 0.16 ×m CMOS process, occupies 0.27 m m2 and achieves 108.5 dB DR, 108.1 dB SNR, 106.4 dB SNDR in a 20 kHz BW, while consuming 618 ×W. This results in a state-of-the-art Schreier FoM of 183.6 dB.

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