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Statements

Subject Item
n2:RIV%2F00216305%3A26220%2F05%3APU50786%21RIV07-GA0-26220___
rdf:type
n11:Vysledek skos:Concept
dcterms:description
The paper deals with a novel 12-bit low power switchedcapacitor (SC) pipelined analog-to-digital converter (ADC). The problems caused by using of SC technique are compensated or roughly attenuated by means of combination of well-known analog-domain techniques and new digital background calibration technique. Since portable applications demand for low power consumption, it is one of the most important issues considered in the design. A modified operational-amplifier (op-amp) sharing technique was used to decrease the power usage as well as capacitor scaling approach. To avoid the clock feedthrough from digital part through the switches the fully differential circuitry was utilized. The special op-amps and comparators were designed for this purpose and to obtain large bandwidth. The power consumption of the op-amps was taken into account too. The finite op-amp dc gain problem is solved in digital-domain using background calibration. The capacitor mismatch and op-amp offset are compensa Tento příspěvek pojednává o nové postkalibrační metodě, která koriguje některé chyby, které vznikají převodem v řetězovém převodníku AD (ADC) při použití obvodové techniky spínaných kapacitorů (SC). Spolu s některými modifikovanými obvodovými principy pak komplexně řeší problémy, které s technikou SC souvisejí. Samotný návrh řetězového ADC byl ovlivněn několika požadavky, a to zejména nízkou spotřebou (pro použití v přenosných zařízeních), dobrým rozlišením při vysoké rychlosti převodu, vysokou linearitou převodu a odolností vůči parazitním vlivům jako jsou různé druhy šumů, parazitní kapacity apod. The paper deals with a novel 12-bit low power switchedcapacitor (SC) pipelined analog-to-digital converter (ADC). The problems caused by using of SC technique are compensated or roughly attenuated by means of combination of well-known analog-domain techniques and new digital background calibration technique. Since portable applications demand for low power consumption, it is one of the most important issues considered in the design. A modified operational-amplifier (op-amp) sharing technique was used to decrease the power usage as well as capacitor scaling approach. To avoid the clock feedthrough from digital part through the switches the fully differential circuitry was utilized. The special op-amps and comparators were designed for this purpose and to obtain large bandwidth. The power consumption of the op-amps was taken into account too. The finite op-amp dc gain problem is solved in digital-domain using background calibration. The capacitor mismatch and op-amp offset are compensa
dcterms:title
A 12-BIT LOW POWER SC PIPELINED ADC USING NOVEL BACKGROUND CALIBRATION APPROACH 12-bitový převodník AD v technice spínaných kapacitorů využívající novou postkalibrační techniku A 12-BIT LOW POWER SC PIPELINED ADC USING NOVEL BACKGROUND CALIBRATION APPROACH
skos:prefLabel
A 12-BIT LOW POWER SC PIPELINED ADC USING NOVEL BACKGROUND CALIBRATION APPROACH 12-bitový převodník AD v technice spínaných kapacitorů využívající novou postkalibrační techniku A 12-BIT LOW POWER SC PIPELINED ADC USING NOVEL BACKGROUND CALIBRATION APPROACH
skos:notation
RIV/00216305:26220/05:PU50786!RIV07-GA0-26220___
n6:strany
283-287
n6:aktivita
n8:P n8:Z
n6:aktivity
P(GA102/03/0619), P(GA102/05/0869), P(GD102/03/H105), Z(MSM0021630503)
n6:dodaniDat
n19:2007
n6:domaciTvurceVysledku
n13:6139310 n13:3071138 n13:7766955 n13:1904345 n13:4135660
n6:druhVysledku
n15:D
n6:duvernostUdaju
n22:S
n6:entitaPredkladatele
n9:predkladatel
n6:idSjednocenehoVysledku
511154
n6:idVysledku
RIV/00216305:26220/05:PU50786
n6:jazykVysledku
n14:eng
n6:klicovaSlova
Pipelined ADC, switched-capacitor technique, background calibration, portable application.
n6:klicoveSlovo
n10:portable%20application. n10:switched-capacitor%20technique n10:Pipelined%20ADC n10:background%20calibration
n6:kontrolniKodProRIV
[42B8A230ECF0]
n6:mistoKonaniAkce
Limerick
n6:mistoVydani
Limerick, Irsko
n6:nazevZdroje
Proceedings of the 5th IEE International Conference on ADDA 2005
n6:obor
n20:JA
n6:pocetDomacichTvurcuVysledku
5
n6:pocetTvurcuVysledku
5
n6:projekt
n17:GA102%2F03%2F0619 n17:GD102%2F03%2FH105 n17:GA102%2F05%2F0869
n6:rokUplatneniVysledku
n19:2005
n6:tvurceVysledku
Skočdopole, Michal Fujcik, Lukáš Sajdl, Ondřej Háze, Jiří Vrba, Radimír
n6:typAkce
n18:CST
n6:zahajeniAkce
2005-07-25+02:00
n6:zamer
n7:MSM0021630503
s:numberOfPages
5
n21:hasPublisher
IEE
n12:isbn
0-86341-542-3
n16:organizacniJednotka
26220