{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,4,4]],"date-time":"2022-04-04T06:51:45Z","timestamp":1649055105514},"reference-count":19,"publisher":"World Scientific Pub Co Pte Lt","issue":"07","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J CIRCUIT SYST COMP"],"published-print":{"date-parts":[[2012,11]]},"abstract":"<jats:p> This paper presents the design and implementation of a high resolution voltage-controlled oscillator (VCO)-based \u03a3\u0394ADC for digital DC-DC converters. The proposed ADC adopts a robust VCO and a sixth-order delta-sigma modulation to attenuate the phase noise and output ripples. The delta-sigma modulation is realized using a cascade of a second-order high-pass filter and a fourth-order band-stop noise shaping filter. Chopper modulation is further employed to reduce the effect of 1\/f noise. These have significantly increased the signal-to-noise+distortion ratio (SNDR) and lead to high linearity. The proposed ADC was designed and fabricated using CMOS 0.18 \u03bcm process. From measurement, the differential and integral nonlinearities of the ADC are determined to be \u00b10.5 LSB and \u00b10.65 LSB, respectively. The SNDR of the ADC is 49 dB up to 500 kHz, which gives an ENOB of 8 bits and quantization step of 2 mV. The ADC also features a low power consumption of 120 \u03bcA and a small IC area of 0.18 mm<jats:sup>2<\/jats:sup>. <\/jats:p>","DOI":"10.1142\/s0218126612500624","type":"journal-article","created":{"date-parts":[[2012,12,21]],"date-time":"2012-12-21T03:12:20Z","timestamp":1356059540000},"page":"1250062","source":"Crossref","is-referenced-by-count":1,"title":["HIGH LINEARITY 8-BIT VCO-BASED CASCADED \u03a3\u0394ADC FOR DIGITAL DC-DC CONVERTERS"],"prefix":"10.1142","volume":"21","author":[{"given":"HUEY CHIAN","family":"FOONG","sequence":"first","affiliation":[{"name":"School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"MENG TONG","family":"TAN","sequence":"additional","affiliation":[{"name":"Institute of Microelectronics, 11 Science Park Road, Singapore Science Park II, Singapore 117685, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"YUANJIN","family":"ZHENG","sequence":"additional","affiliation":[{"name":"School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2013,1,17]]},"reference":[{"key":"rf1","doi-asserted-by":"publisher","DOI":"10.1007\/0-306-48048-4_2"},{"key":"rf2","doi-asserted-by":"publisher","DOI":"10.1049\/iet-cds:20060241"},{"key":"rf4","doi-asserted-by":"publisher","DOI":"10.1049\/el:20051452"},{"key":"rf5","doi-asserted-by":"publisher","DOI":"10.1109\/TPEL.2008.924823"},{"key":"rf6","doi-asserted-by":"publisher","DOI":"10.1109\/TPEL.2009.2029691"},{"key":"rf7","doi-asserted-by":"publisher","DOI":"10.1109\/TPEL.2006.876850"},{"key":"rf8","unstructured":"J. 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