{"title":"A High Speed Pseudo-Differential OTA with Mobility Compensation Technique in 1-V Power Supply Voltage","authors":"Tien-Yu Lo, C. Hung","doi":"10.1109/ASSCC.2006.357876","DOIUrl":null,"url":null,"abstract":"This paper presents a high linearity operational transconductance amplifier (OTA) based on pseudo-differential structures. The linearity is improved by mobility compensation techniques as the device size is scaled down to achieve high speed operation. Transconductance tuning could be achieved by a MOS operating in the linear region. The OTA fabricated in the TSMC 0.18-mum CMOS process occupies a small area of 4.5 times 10-3 mm2. The measured third-order inter-modulation (IM3) distortion under 1-V power supply voltage remains below -52 dB up to 50 MHz for a 400 mV pp differential input. The static power consumption is 2.5 mW. Experimental results demonstrate the agreement with theoretical analyses.","PeriodicalId":142478,"journal":{"name":"2006 IEEE Asian Solid-State Circuits Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2006 IEEE Asian Solid-State Circuits Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ASSCC.2006.357876","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 10
Abstract
This paper presents a high linearity operational transconductance amplifier (OTA) based on pseudo-differential structures. The linearity is improved by mobility compensation techniques as the device size is scaled down to achieve high speed operation. Transconductance tuning could be achieved by a MOS operating in the linear region. The OTA fabricated in the TSMC 0.18-mum CMOS process occupies a small area of 4.5 times 10-3 mm2. The measured third-order inter-modulation (IM3) distortion under 1-V power supply voltage remains below -52 dB up to 50 MHz for a 400 mV pp differential input. The static power consumption is 2.5 mW. Experimental results demonstrate the agreement with theoretical analyses.
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