A robust parasitic-insensitive successive approximation capacitance-to-digital converter

Handle URI:
http://hdl.handle.net/10754/564996
Title:
A robust parasitic-insensitive successive approximation capacitance-to-digital converter
Authors:
Omran, Hesham ( 0000-0002-0117-7364 ) ; Arsalan, Muhammad; Salama, Khaled N. ( 0000-0001-7742-1282 )
Abstract:
In this paper, we present a capacitive sensor digital interface circuit using true capacitance-domain successive approximation that is independent of supply voltage. Robust operation is achieved by using a charge amplifier stage and multiple comparison technique. The interface circuit is insensitive to parasitic capacitances, offset voltages, and charge injection, and is not prone to noise coupling. The proposed design achieves very low temperature sensitivity of 25ppm/oC. A coarse-fine programmable capacitance array allows digitizing a wide capacitance range of 16pF with 12.5-bit quantization limited resolution in a compact area of 0.07mm2. The fabricated prototype is experimentally verified using on-chip sensor and off-chip MEMS capacitive pressure sensor. © 2014 IEEE.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Sensors Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
Proceedings of the IEEE 2014 Custom Integrated Circuits Conference
Conference/Event name:
36th Annual Custom Integrated Circuits Conference - The Showcase for Integrated Circuit Design in the Heart of Silicon Valley, CICC 2014
Issue Date:
Sep-2014
DOI:
10.1109/CICC.2014.6946080
Type:
Conference Paper
ISBN:
9781479932863
Appears in Collections:
Conference Papers; Electrical Engineering Program; Sensors Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorOmran, Heshamen
dc.contributor.authorArsalan, Muhammaden
dc.contributor.authorSalama, Khaled N.en
dc.date.accessioned2015-08-04T07:27:36Zen
dc.date.available2015-08-04T07:27:36Zen
dc.date.issued2014-09en
dc.identifier.isbn9781479932863en
dc.identifier.doi10.1109/CICC.2014.6946080en
dc.identifier.urihttp://hdl.handle.net/10754/564996en
dc.description.abstractIn this paper, we present a capacitive sensor digital interface circuit using true capacitance-domain successive approximation that is independent of supply voltage. Robust operation is achieved by using a charge amplifier stage and multiple comparison technique. The interface circuit is insensitive to parasitic capacitances, offset voltages, and charge injection, and is not prone to noise coupling. The proposed design achieves very low temperature sensitivity of 25ppm/oC. A coarse-fine programmable capacitance array allows digitizing a wide capacitance range of 16pF with 12.5-bit quantization limited resolution in a compact area of 0.07mm2. The fabricated prototype is experimentally verified using on-chip sensor and off-chip MEMS capacitive pressure sensor. © 2014 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.titleA robust parasitic-insensitive successive approximation capacitance-to-digital converteren
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentSensors Laben
dc.identifier.journalProceedings of the IEEE 2014 Custom Integrated Circuits Conferenceen
dc.conference.date15 September 2014 through 17 September 2014en
dc.conference.name36th Annual Custom Integrated Circuits Conference - The Showcase for Integrated Circuit Design in the Heart of Silicon Valley, CICC 2014en
kaust.authorOmran, Heshamen
kaust.authorArsalan, Muhammaden
kaust.authorSalama, Khaled N.en
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