Jongsik Kim, Sangwon Han, Tae Wook Kim, Boeun Kim, Hyunchol Shin
{"title":"采用源耦合辅助场效应管对进行线性化的2.4 ghz CMOS阻性退化差分放大器","authors":"Jongsik Kim, Sangwon Han, Tae Wook Kim, Boeun Kim, Hyunchol Shin","doi":"10.1109/ASSCC.2008.4708823","DOIUrl":null,"url":null,"abstract":"A resistively degenerated differential amplifier is linearized by using a source-coupled auxiliary FET pair. The structure does not lower the effective g3 of the degenerated auxiliary FET pair while it efficiently cancels the second harmonic feedback component. Realized in 0.18-mum CMOS, the proposed differential amplifier achieves 9.8 dB of power gain, +7.7 dBm of output P1dB, and +25.8 dBm of peak OIP3. The maximum output power level with OIP3 greater than +20 dBm is extended by 7 ~ 10 dB compared to the conventional structure adopting a source-decoupled auxiliary FET pair. The results prove that the proposed degeneration configuration is suitable for linearizing a resistively degenerated CMOS differential amplifier.","PeriodicalId":143173,"journal":{"name":"2008 IEEE Asian Solid-State Circuits Conference","volume":"122 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"A 2.4-GHz CMOS resistively degenerated differential amplifier linearized using source coupled auxiliary FET pair\",\"authors\":\"Jongsik Kim, Sangwon Han, Tae Wook Kim, Boeun Kim, Hyunchol Shin\",\"doi\":\"10.1109/ASSCC.2008.4708823\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A resistively degenerated differential amplifier is linearized by using a source-coupled auxiliary FET pair. The structure does not lower the effective g3 of the degenerated auxiliary FET pair while it efficiently cancels the second harmonic feedback component. Realized in 0.18-mum CMOS, the proposed differential amplifier achieves 9.8 dB of power gain, +7.7 dBm of output P1dB, and +25.8 dBm of peak OIP3. The maximum output power level with OIP3 greater than +20 dBm is extended by 7 ~ 10 dB compared to the conventional structure adopting a source-decoupled auxiliary FET pair. The results prove that the proposed degeneration configuration is suitable for linearizing a resistively degenerated CMOS differential amplifier.\",\"PeriodicalId\":143173,\"journal\":{\"name\":\"2008 IEEE Asian Solid-State Circuits Conference\",\"volume\":\"122 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-12-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2008 IEEE Asian Solid-State Circuits Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ASSCC.2008.4708823\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 IEEE Asian Solid-State Circuits Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ASSCC.2008.4708823","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A 2.4-GHz CMOS resistively degenerated differential amplifier linearized using source coupled auxiliary FET pair
A resistively degenerated differential amplifier is linearized by using a source-coupled auxiliary FET pair. The structure does not lower the effective g3 of the degenerated auxiliary FET pair while it efficiently cancels the second harmonic feedback component. Realized in 0.18-mum CMOS, the proposed differential amplifier achieves 9.8 dB of power gain, +7.7 dBm of output P1dB, and +25.8 dBm of peak OIP3. The maximum output power level with OIP3 greater than +20 dBm is extended by 7 ~ 10 dB compared to the conventional structure adopting a source-decoupled auxiliary FET pair. The results prove that the proposed degeneration configuration is suitable for linearizing a resistively degenerated CMOS differential amplifier.