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A 120nW 18.5kHz RC oscillator with comparator offset cancellation for ±0.25% temperature stability

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dc.contributor.author Paidimarri, Arun
dc.contributor.author Griffith, Danielle
dc.contributor.author Wang, Alice
dc.contributor.author Chandrakasan, Anantha P.
dc.contributor.author Burra, Gangadhar
dc.date.accessioned 2015-01-13T18:51:54Z
dc.date.available 2015-01-13T18:51:54Z
dc.date.issued 2013-02
dc.identifier.isbn 978-1-4673-4516-3
dc.identifier.isbn 978-1-4673-4515-6
dc.identifier.isbn 978-1-4673-4514-9
dc.identifier.uri http://hdl.handle.net/1721.1/92830
dc.description.abstract Integrated low-frequency oscillators can replace crystal oscillators as sleep-mode timers to reduce the size and cost of wireless sensors [1]. Since the timer is one of the few continuously functioning circuits, minimizing its power consumption can greatly reduce sleep-mode power of highly duty-cycled systems. Temperature stability of the oscillator is important in order to minimize timing uncertainly and guard time for the radios, and thus maximizing sleep time. The voltage-averaging feedback method described in [2] achieves high stability in the MHz frequencies, but when scaled to the kHz range, requires very large filters. On the other extreme, gate leakage-based timers have been designed for sub-nW power consumption, but operate in the sub-Hz frequencies [3]. In the past, high accuracy RC oscillators in the kHz range have been designed with feed-forward correction [1] and self-chopped operation [4]. In this work, an offset cancellation architecture achieves long-term frequency stability and temperature stability while operating at lower power. en_US
dc.language.iso en_US
dc.publisher Institute of Electrical and Electronics Engineers (IEEE) en_US
dc.relation.isversionof http://dx.doi.org/10.1109/ISSCC.2013.6487692 en_US
dc.rights Creative Commons Attribution-Noncommercial-Share Alike en_US
dc.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/ en_US
dc.source Chandrakasan en_US
dc.title A 120nW 18.5kHz RC oscillator with comparator offset cancellation for ±0.25% temperature stability en_US
dc.type Article en_US
dc.identifier.citation Paidimarri, A., D. Griffith, A. Wang, A. P. Chandrakasan, and G. Burra. “A 120nW 18.5kHz RC Oscillator with Comparator Offset Cancellation for ±0.25% Temperature Stability.” 2013 IEEE International Solid-State Circuits Conference Digest of Technical Papers (February 2013). en_US
dc.contributor.department Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science en_US
dc.contributor.approver Chandrakasan, Anantha P. en_US
dc.contributor.mitauthor Paidimarri, Arun en_US
dc.contributor.mitauthor Chandrakasan, Anantha P. en_US
dc.relation.journal Proceedings of the 2013 IEEE International Solid-State Circuits Conference Digest of Technical Papers en_US
dc.identifier.mitlicense OPEN_ACCESS_POLICY en_US
dc.eprint.version Author's final manuscript en_US
dc.type.uri http://purl.org/eprint/type/ConferencePaper en_US
eprint.status http://purl.org/eprint/status/NonPeerReviewed en_US
dspace.orderedauthors Paidimarri, A.; Griffith, D.; Wang, A.; Chandrakasan, A. P.; Burra, G. en_US
dc.identifier.orcid https://orcid.org/0000-0003-0493-337X
dc.identifier.orcid https://orcid.org/0000-0002-5977-2748


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