NDLI: A low-power and low-voltage BBPLL-based sensor interface in 130nm CMOS for wireless sensor networks

Content Provider	IEEE Xplore Digital Library
Author	Van Rethy, Jelle Danneels, Hans De Smedt, Valentijn Dehaene, Wim Gielen, Georges
Copyright Year	2013
Description	Author affiliation: KU Leuven, Dept. Elektrotechniek, afd. ESAT-MICAS, Kasteelpark Arenberg 10, 3001, Belgium (Van Rethy, Jelle; Danneels, Hans; De Smedt, Valentijn; Dehaene, Wim; Gielen, Georges)
Abstract	A low-power and low-voltage BBPLL-based sensor interface for resistive sensors in Wireless Sensor Networks is presented. The interface is optimized towards low power, fast start-up time and fast conversion time, making it primarily useful in autonomous wireless sensor networks. The interface is time/frequency-based, making it less sensitive to lower supply voltages and other analog non-idealities, whereas conventional amplitude-based interfaces do suffer largely from these non-idealities, especially in smaller CMOS technologies. The sensor-to-digital conversion is based on the locking behavior of a digital PLL, which also includes transient behavior after start-up. Several techniques such as VDD scaling, coarse and fine tuning and pulse-width modulated feedback are implemented to decrease the transient and acquisition time and the power to optimize the total energy consumption. In this way the sensor interface consumes only 61µW from a 0.8V DC power supply with a one-sample conversion time of less than 20µs worst-case. The sensor interface is designed and implemented in UMC130 CMOS technology and outputs 8 bit parallel with 7.72 ENOB. Due to its fast start-up time, fast conversion time and low power consumption, it only consumes 5.79 pJ/bit-conversion, which is a state-of-the-art energy efficiency compared to recent resistive sensor interfaces.
Starting Page	1431
Ending Page	1435
File Size	3253960
Page Count	5
File Format	PDF
ISBN	9781467350716
ISSN	15301591
e-ISBN	9783981537000
DOI	10.7873/DATE.2013.292
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-03-18
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	European Design Automation Association (EDAA)
Subject Keyword	Voltage-controlled oscillators Tuning Detectors Clocks Wireless sensor networks Phase noise CMOS integrated circuits
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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