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Statements

Subject Item
n2:RIV%2F00216305%3A26220%2F06%3APU57508%21RIV07-GA0-26220___
rdf:type
skos:Concept n19:Vysledek
dcterms:description
The article presents new background calibration technique, which is utilized in new 10-bit low power switched-capacitor(SC) pipelined ADC. Since portable applications demand for low power consumption, it is one of the most important issues considered in the design. A modified operationalamplifier (op-amp) sharing technique – shared operational transconductance amplifier (OTA) was used to decrease the power usage as well as capacitor scaling approach. The problems caused by SC (i.e. clock feedthrough from digital part through the switches, capacitor mismatch etc.) are avoided using the fully differential circuitry in conjunction with novel background calibration. The special OTAs and comparators were designed for this purpose and to obtain large bandwidth. The power consumption of the OTAs was taken into account too. The finite OTA dc gain problem is solved in digitaldomain using background calibration. The capacitor mismatch and OTA offset are compensated in the same manner as me The article presents new background calibration technique, which is utilized in new 10-bit low power switched-capacitor(SC) pipelined ADC. Since portable applications demand for low power consumption, it is one of the most important issues considered in the design. A modified operationalamplifier (op-amp) sharing technique – shared operational transconductance amplifier (OTA) was used to decrease the power usage as well as capacitor scaling approach. The problems caused by SC (i.e. clock feedthrough from digital part through the switches, capacitor mismatch etc.) are avoided using the fully differential circuitry in conjunction with novel background calibration. The special OTAs and comparators were designed for this purpose and to obtain large bandwidth. The power consumption of the OTAs was taken into account too. The finite OTA dc gain problem is solved in digitaldomain using background calibration. The capacitor mismatch and OTA offset are compensated in the same manner as me Článek popisuje novou kalibrační techniku, která je použita v 10-bitovém řetězovém převodníku DA. Převodník pracuje v technice spínaných kapacitorů. Protože je převodník určen pro aplikace s bateriovým napájením, byla uvažována i potřeba co nejmenší spotřeby obvodu. Spolu s novou kalibrační technikou byly použity modifikované obvodové techniky, které dohromady řeší problémy spojené s technikou SC.
dcterms:title
Modelování 10-bitového, 40 MHz, nízkopříkonového řetězového převodníku AD, který využívá novou kalibrační metodu Modeling of 10-bits, 40 MHz, low power pipelined ADC utilizing novel background calibration Modeling of 10-bits, 40 MHz, low power pipelined ADC utilizing novel background calibration
skos:prefLabel
Modeling of 10-bits, 40 MHz, low power pipelined ADC utilizing novel background calibration Modeling of 10-bits, 40 MHz, low power pipelined ADC utilizing novel background calibration Modelování 10-bitového, 40 MHz, nízkopříkonového řetězového převodníku AD, který využívá novou kalibrační metodu
skos:notation
RIV/00216305:26220/06:PU57508!RIV07-GA0-26220___
n3:strany
116-121
n3:aktivita
n15:Z n15:P
n3:aktivity
P(FT-TA/050), P(GA102/05/0869), Z(MSM0021630503)
n3:dodaniDat
n13:2007
n3:domaciTvurceVysledku
n11:1904345 n11:3071138 n11:4135660 n11:6139310
n3:druhVysledku
n12:D
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
486184
n3:idVysledku
RIV/00216305:26220/06:PU57508
n3:jazykVysledku
n6:eng
n3:klicovaSlova
Pipelined ADC, switched-capacitors, background calibration, portable devices
n3:klicoveSlovo
n4:portable%20devices n4:background%20calibration n4:switched-capacitors n4:Pipelined%20ADC
n3:kontrolniKodProRIV
[8CC7786B1007]
n3:mistoKonaniAkce
Morne
n3:mistoVydani
Mauritius
n3:nazevZdroje
Proceedings of ICN 2006, ICONS 2006, MCL 2006
n3:obor
n10:JA
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:projekt
n5:FT-TA%2F050 n5:GA102%2F05%2F0869
n3:rokUplatneniVysledku
n13:2006
n3:tvurceVysledku
Vrba, Radimír Sajdl, Ondřej Háze, Jiří Fujcik, Lukáš
n3:typAkce
n16:WRD
n3:zahajeniAkce
2006-04-26+02:00
n3:zamer
n21:MSM0021630503
s:numberOfPages
6
n17:hasPublisher
IEEE
n22:isbn
0-7695-2552-0
n14:organizacniJednotka
26220