A 1 v 2.5 μw fully-differential ASK demodulator with 12.5 pJ/bit FOM for ultra-low power biomedical applications

Seungyeob Baik; Arup K. George; Minkyu Je; Junghyup Lee

doi:10.1109/MWSCAS.2017.8052923

A 1 v 2.5 μw fully-differential ASK demodulator with 12.5 pJ/bit FOM for ultra-low power biomedical applications

Seungyeob Baik
, Arup K. George
, Minkyu Je
, Junghyup Lee

Department of Electrical Engineering and Computer Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Scopus citations

Abstract

Wireless transceivers that receive data and power are important circuit blocks in implantable biomedical devices. In such wirelessly powered devices, supply and common-mode variations increase the error rate of the received data. In this paper we propose a fully-differential amplitude-shift-keying (ASK) demodulator for suppressing the effect of such undesired common mode variations on the received data. The proposed demodulator consists of a fully-differential envelope detector (ED) and programmable gain amplifier (PGA) that operates in the sub-threshold region, and a differential comparator that consumes only dynamic current. The proposed system is implemented in a 0.18 μm CMOS process and consumes 2.5 μα from a 1 V power supply. At a data rate of 200 kbps, this leads to an FOM of 12.5 pJ/bit.

Original language	English
Title of host publication	2017 IEEE 60th International Midwest Symposium on Circuits and Systems, MWSCAS 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	313-316
Number of pages	4
ISBN (Electronic)	9781509063895
DOIs	https://doi.org/10.1109/MWSCAS.2017.8052923
State	Published - 27 Sep 2017
Event	60th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2017 - Boston, United States Duration: 6 Aug 2017 → 9 Aug 2017

Publication series

Name	Midwest Symposium on Circuits and Systems
Volume	2017-August
ISSN (Print)	1548-3746

Conference

Conference	60th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2017
Country/Territory	United States
City	Boston
Period	6/08/17 → 9/08/17

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

Keywords

Amplitude-shift-keying (ASK)
Common-mode noise
Demodulator
Differential
Ultra-low power
Wireless powered devices

Access to Document

10.1109/MWSCAS.2017.8052923

Cite this

Baik, S., George, A. K., Je, M., & Lee, J. (2017). A 1 v 2.5 μw fully-differential ASK demodulator with 12.5 pJ/bit FOM for ultra-low power biomedical applications. In 2017 IEEE 60th International Midwest Symposium on Circuits and Systems, MWSCAS 2017 (pp. 313-316). Article 8052923 (Midwest Symposium on Circuits and Systems; Vol. 2017-August). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MWSCAS.2017.8052923

Baik, Seungyeob ; George, Arup K. ; Je, Minkyu et al. / A 1 v 2.5 μw fully-differential ASK demodulator with 12.5 pJ/bit FOM for ultra-low power biomedical applications. 2017 IEEE 60th International Midwest Symposium on Circuits and Systems, MWSCAS 2017. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 313-316 (Midwest Symposium on Circuits and Systems).

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title = "A 1 v 2.5 μw fully-differential ASK demodulator with 12.5 pJ/bit FOM for ultra-low power biomedical applications",

abstract = "Wireless transceivers that receive data and power are important circuit blocks in implantable biomedical devices. In such wirelessly powered devices, supply and common-mode variations increase the error rate of the received data. In this paper we propose a fully-differential amplitude-shift-keying (ASK) demodulator for suppressing the effect of such undesired common mode variations on the received data. The proposed demodulator consists of a fully-differential envelope detector (ED) and programmable gain amplifier (PGA) that operates in the sub-threshold region, and a differential comparator that consumes only dynamic current. The proposed system is implemented in a 0.18 μm CMOS process and consumes 2.5 μα from a 1 V power supply. At a data rate of 200 kbps, this leads to an FOM of 12.5 pJ/bit.",

keywords = "Amplitude-shift-keying (ASK), Common-mode noise, Demodulator, Differential, Ultra-low power, Wireless powered devices",

author = "Seungyeob Baik and George, \{Arup K.\} and Minkyu Je and Junghyup Lee",

note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 60th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2017 ; Conference date: 06-08-2017 Through 09-08-2017",

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doi = "10.1109/MWSCAS.2017.8052923",

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Baik, S, George, AK, Je, M & Lee, J 2017, A 1 v 2.5 μw fully-differential ASK demodulator with 12.5 pJ/bit FOM for ultra-low power biomedical applications. in 2017 IEEE 60th International Midwest Symposium on Circuits and Systems, MWSCAS 2017., 8052923, Midwest Symposium on Circuits and Systems, vol. 2017-August, Institute of Electrical and Electronics Engineers Inc., pp. 313-316, 60th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2017, Boston, United States, 6/08/17. https://doi.org/10.1109/MWSCAS.2017.8052923

A 1 v 2.5 μw fully-differential ASK demodulator with 12.5 pJ/bit FOM for ultra-low power biomedical applications. / Baik, Seungyeob; George, Arup K.; Je, Minkyu et al.
2017 IEEE 60th International Midwest Symposium on Circuits and Systems, MWSCAS 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 313-316 8052923 (Midwest Symposium on Circuits and Systems; Vol. 2017-August).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Baik S, George AK, Je M, Lee J. A 1 v 2.5 μw fully-differential ASK demodulator with 12.5 pJ/bit FOM for ultra-low power biomedical applications. In 2017 IEEE 60th International Midwest Symposium on Circuits and Systems, MWSCAS 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 313-316. 8052923. (Midwest Symposium on Circuits and Systems). doi: 10.1109/MWSCAS.2017.8052923

A 1 v 2.5 μw fully-differential ASK demodulator with 12.5 pJ/bit FOM for ultra-low power biomedical applications

Abstract

Publication series

Conference

Bibliographical note

Keywords

Access to Document

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Cite this