{"title":"A 3.5 to 7 GHz Wideband Differential LNA with gm Enhancement for 5G Applications","authors":"Nakisa Shams, A. Abbasi, F. Nabki","doi":"10.1109/newcas49341.2020.9159772","DOIUrl":null,"url":null,"abstract":"This paper presents a differential wideband low noise amplifier (LNA) targeting 5G applications in 130 nm TSMC CMOS technology. The proposed LNA is based on the capacitive cross-coupled common-gate (CCC-CG) push-pull architecture. The LNA utilizes inductors for wideband input matching that resonate with the input parasitic capacitors. The CCC-CG structure along with a current-reuse PMOS and NMOS technique enhances transconductance, reducing noise figure (NF) and increasing voltage gain. Post-layout simulation results show that the differential LNA achieves a gain of 21 ±1.5 dB, NF of less than 4 dB and IIP3 of higher than −2.5 dBm over the bandwidth of 3.5 to 7 GHz. The LNA consumes 2.4 mA from 1 V supply, and occupies an active area of 0.24 mm2.","PeriodicalId":135163,"journal":{"name":"2020 18th IEEE International New Circuits and Systems Conference (NEWCAS)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 18th IEEE International New Circuits and Systems Conference (NEWCAS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/newcas49341.2020.9159772","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
This paper presents a differential wideband low noise amplifier (LNA) targeting 5G applications in 130 nm TSMC CMOS technology. The proposed LNA is based on the capacitive cross-coupled common-gate (CCC-CG) push-pull architecture. The LNA utilizes inductors for wideband input matching that resonate with the input parasitic capacitors. The CCC-CG structure along with a current-reuse PMOS and NMOS technique enhances transconductance, reducing noise figure (NF) and increasing voltage gain. Post-layout simulation results show that the differential LNA achieves a gain of 21 ±1.5 dB, NF of less than 4 dB and IIP3 of higher than −2.5 dBm over the bandwidth of 3.5 to 7 GHz. The LNA consumes 2.4 mA from 1 V supply, and occupies an active area of 0.24 mm2.