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A low power, propagation delay stable, continuous-time comparator
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Embedded Internet Systems Lab.
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Embedded Internet Systems Lab.ORCID iD: 0000-0002-4133-3317
2004 (English)In: Proceedings: NORCHIP, Oslo, Norway, 8 - 9 November 2004, Piscataway, NJ: IEEE Communications Society, 2004, 261-264 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper describes a design strategy towards a low power, DC level insensitive comparator with stable low power, level insensitive comparator with stable propagation time. The comparator b must suitable in applications were a constant propagation delay is critical, such as level crossing detection in ultrasound measurements and level crossing detection in ultrasound measurements and time quantization A/D convertem. The use of a long absolute propagation delay allows low power consumption while keeping the signal dependent propagation delay variation low. The comparator b able to process signals with all DC level within power rails due to a constant-gm, rail-to-rail, single-ended to differential converter implemented in the input stage. Schematic simulations show that the comparator has less than 1 ns delay variation at an absolute propagation delay of 12 ns. Test signals include frequencies from 0.5 MHz to 10 MHz, amplitudes fmm 30 mV to 1 V and all DC levels within rails.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2004. 261-264 p.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Industrial Electronics
Identifiers
URN: urn:nbn:se:ltu:diva-27037DOI: 10.1109/NORCHP.2004.1423873Local ID: 0578ae20-e834-11db-b9a9-000ea68e967bISBN: 0-7803-8510-1 (print)OAI: oai:DiVA.org:ltu-27037DiVA: diva2:1000218
Conference
NORCHIP Conference : 08/11/2004 - 09/11/2004
Note
Godkänd; 2004; 20070328 (pekkari)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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Kozmin, KirillJohansson, JonnyDelsing, Jerker
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