Lin, C.-Y.C.-Y.LinWong, C.-H.C.-H.WongHsu, C.-H.C.-H.HsuWei, Y.-H.Y.-H.WeiTAI-CHENG LEE2020-06-112020-06-11201615497747https://scholars.lib.ntu.edu.tw/handle/123456789/498491https://www.scopus.com/inward/record.uri?eid=2-s2.0-84985914550&doi=10.1109%2fTCSII.2016.2534678&partnerID=40&md5=0df6fc9aa1ecf24a0f70f1f3bb1869dfA low-noise phase-detector-based comparator is proposed for SAR ADCs. It can reduce the thermal-induced noise as well as the probability of the metastability. The proposed comparator is composed of two front-end dynamic comparators and a backend phase detector. The comparator has been fabricated in a 0.18-μm CMOS technology and achieves 400-μVrms noise at a conversion rate of 200 MHz under a 1.8-V supply voltage while consuming 78 μW. Its active area is 0.001 mm2. © 2016 IEEE.Low noise; metastability; phase-detector-based (PD-based) comparator; SAR ADC[SDGs]SDG7Analog to digital conversion; Comparators (optical); Signal detection; CMOS technology; Conversion rates; Dynamic comparators; Low noise; Metastabilities; Pd-based; Phase detectors; SAR ADC; Phase comparatorsjournal article10.1109/TCSII.2016.25346782-s2.0-84985914550