A Direct Conversion Transceiver for Portable Microfluidic NMR Flowmeters

Eren Aydin; Amirhossein Jouyaeian; Zhong Tang; Kofi Makinwa

doi:10.1109/ESSERC62670.2024.10719403

A Direct Conversion Transceiver for Portable Microfluidic NMR Flowmeters

Eren Aydin^*, Amirhossein Jouyaeian, Zhong Tang, Kofi Makinwa

^*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

This paper presents a direct conversion transceiver intended for use in a microfluidic NMR flowmeter. It consists of an H-bridge power amplifier, which drives a hand-wound milimeter-sized coil with RF signals, and a direct conversion receiver, which amplifies the NMR signals picked up by the coil, and then digitizes them with an asynchronous 8 bit SAR ADC sampling at 70 MHz. Fabricated in a 65 nm CMOS technology, the receiver achieves a noise spectral density of 1 nV/sqrt(Hz) at 21 MHz, while dissipating only 36 mW. A microfluidic flowmeter based on the transceiver and a handheld 0.5 T permanent magnet can measure flow rates up to 96 ml/h in a 0.8 mm inner-diameter channel with pm 1.3 % full-scale error. To the authors' best knowledge, this is the first reported portable NMR flowmeter.

Original language	English
Title of host publication	ESSERC 2024 - Proceedings
Subtitle of host publication	50th IEEE European Solid-State Electronics Research Conference
Publisher	IEEE
Pages	536-539
Number of pages	4
ISBN (Electronic)	9798350388138
DOIs	https://doi.org/10.1109/ESSERC62670.2024.10719403
Publication status	Published - 2024
Event	50th IEEE European Solid-State Electronics Research Conference, ESSERC 2024 - Bruges, Belgium Duration: 9 Sept 2024 → 12 Sept 2024

Publication series

Name	European Solid-State Circuits Conference
ISSN (Print)	1930-8833

Conference

Conference	50th IEEE European Solid-State Electronics Research Conference, ESSERC 2024
Country/Territory	Belgium
City	Bruges
Period	9/09/24 → 12/09/24

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.

Keywords

ADC
ASIC
CMOS
direct-conversion
flowmeter
NMR
transceiver

Access to Document

10.1109/ESSERC62670.2024.10719403

A_Direct_Conversion_Transceiver_for_Portable_Microfluidic_NMR_FlowmetersFinal published version, 3.66 MB

Cite this

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title = "A Direct Conversion Transceiver for Portable Microfluidic NMR Flowmeters",

abstract = "This paper presents a direct conversion transceiver intended for use in a microfluidic NMR flowmeter. It consists of an H-bridge power amplifier, which drives a hand-wound milimeter-sized coil with RF signals, and a direct conversion receiver, which amplifies the NMR signals picked up by the coil, and then digitizes them with an asynchronous 8 bit SAR ADC sampling at 70 MHz. Fabricated in a 65 nm CMOS technology, the receiver achieves a noise spectral density of 1 nV/sqrt(Hz) at 21 MHz, while dissipating only 36 mW. A microfluidic flowmeter based on the transceiver and a handheld 0.5 T permanent magnet can measure flow rates up to 96 ml/h in a 0.8 mm inner-diameter channel with pm 1.3 % full-scale error. To the authors' best knowledge, this is the first reported portable NMR flowmeter.",

keywords = "ADC, ASIC, CMOS, direct-conversion, flowmeter, NMR, transceiver",

author = "Eren Aydin and Amirhossein Jouyaeian and Zhong Tang and Kofi Makinwa",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – 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. ; 50th IEEE European Solid-State Electronics Research Conference, ESSERC 2024 ; Conference date: 09-09-2024 Through 12-09-2024",

year = "2024",

doi = "10.1109/ESSERC62670.2024.10719403",

language = "English",

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Aydin, E , Jouyaeian, A, Tang, Z & Makinwa, K 2024, A Direct Conversion Transceiver for Portable Microfluidic NMR Flowmeters. in ESSERC 2024 - Proceedings: 50th IEEE European Solid-State Electronics Research Conference. European Solid-State Circuits Conference, IEEE, pp. 536-539, 50th IEEE European Solid-State Electronics Research Conference, ESSERC 2024, Bruges, Belgium, 9/09/24. https://doi.org/10.1109/ESSERC62670.2024.10719403

A Direct Conversion Transceiver for Portable Microfluidic NMR Flowmeters. / Aydin, Eren ; Jouyaeian, Amirhossein; Tang, Zhong et al.
ESSERC 2024 - Proceedings: 50th IEEE European Solid-State Electronics Research Conference. IEEE, 2024. p. 536-539 (European Solid-State Circuits Conference).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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AU - Jouyaeian, Amirhossein

AU - Tang, Zhong

AU - Makinwa, Kofi

N1 - 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.

PY - 2024

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N2 - This paper presents a direct conversion transceiver intended for use in a microfluidic NMR flowmeter. It consists of an H-bridge power amplifier, which drives a hand-wound milimeter-sized coil with RF signals, and a direct conversion receiver, which amplifies the NMR signals picked up by the coil, and then digitizes them with an asynchronous 8 bit SAR ADC sampling at 70 MHz. Fabricated in a 65 nm CMOS technology, the receiver achieves a noise spectral density of 1 nV/sqrt(Hz) at 21 MHz, while dissipating only 36 mW. A microfluidic flowmeter based on the transceiver and a handheld 0.5 T permanent magnet can measure flow rates up to 96 ml/h in a 0.8 mm inner-diameter channel with pm 1.3 % full-scale error. To the authors' best knowledge, this is the first reported portable NMR flowmeter.

AB - This paper presents a direct conversion transceiver intended for use in a microfluidic NMR flowmeter. It consists of an H-bridge power amplifier, which drives a hand-wound milimeter-sized coil with RF signals, and a direct conversion receiver, which amplifies the NMR signals picked up by the coil, and then digitizes them with an asynchronous 8 bit SAR ADC sampling at 70 MHz. Fabricated in a 65 nm CMOS technology, the receiver achieves a noise spectral density of 1 nV/sqrt(Hz) at 21 MHz, while dissipating only 36 mW. A microfluidic flowmeter based on the transceiver and a handheld 0.5 T permanent magnet can measure flow rates up to 96 ml/h in a 0.8 mm inner-diameter channel with pm 1.3 % full-scale error. To the authors' best knowledge, this is the first reported portable NMR flowmeter.

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KW - direct-conversion

KW - flowmeter

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BT - ESSERC 2024 - Proceedings

PB - IEEE

T2 - 50th IEEE European Solid-State Electronics Research Conference, ESSERC 2024

Y2 - 9 September 2024 through 12 September 2024

ER -

A Direct Conversion Transceiver for Portable Microfluidic NMR Flowmeters

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