02897nas|a2200385 a 4500 20260817161150.0 070615s2006 th uu|m rtt 0| a1eng d .b12014254 AIT Thesis no.ME-06-01 Anand, Awinash A 12-bit low voltage continuous-time delta-sigma modulator Pathum Thani, Thailand : Asian Institute of Technology, 2006 50 p. : ill. Thesis ; no. ME-06-01 A thesis submitted in pa1tial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 2006 This thesis work implements a third order low-pass delta-sigma modulator using a continuous-time (CT) loop filter. The loop filter is realized by using active RC integrators. The integrators use fully differential folded cascode OTA for low voltage application. The OTA has dc gain of 63.5 dB and unity gain bandwidth of 9 MHz. The sampling and quantization is performed by a latched type clocked comparator. For the low-voltage and high sp:.d comparator, a fully symmetrical regenerative comparator is used. The comparator has the worst case signal-dependent delay, td below 1% Ts which has no significant influence on the overall modulator performance. The output of the comparator is stored in D-flip-flop. The feedback DAC is implemented with NRZ DAC which consists of the traditional clock generator and switching block which follows the flip-flop output. The DAC has slew rate of 274 V/las. The modulator is implemented in a UMC 1.8 V, 0.18 pm CMOS technology. Calculations of the low-power CT A-Z modulator show a dynamic range and peak SNDR of 75 dB and 67 dB, respectively, in a bandwidth of 25 kHz and oversampling frequency of 2.4 MHz. The measured power is only 120 pW from a single 1 V supply Modulators (Electronics) Afzalpurkar, Nitin, Chairperson Apisak Worapishet, Co-Chairperson Chumnarn Punyasai, Examination committee Asian Institute of Technology Fellowship, Scholarship donor Asian Institute of Technology. Thesis ; no. ME-06-01 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B10374 .b12014254 mnait u 240401 0 070615 m a u 2 mnait mnarc 22 40 Barcode : 30050120657563 CREATED : 2014-03-21 RECORD # : i12777407 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160028394 CREATED : 2016-03-17 RECORD # : i12894746 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 178 178 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no.ME-06-01 30050120657563 2026-08-17 16:11:50 3 2026-08-17 22 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no.ME-06-01 30050160028394 2026-08-17 16:11:50 1 2026-08-17 40