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A Full-Duplex Line Driver for Gigabit Ethernet With Rail-to-Rail Class-AB Output Stage in 28 nm CMOS Hui Pan, Y uan Y ao, Mostafa Hammad, Junhua Tan, Kar im Abdelhalim, Evelyn Wenting Wang, Rick C. J. Hsu
一种用于千兆以太网的全双工线路驱动器，采用轨到轨Class-AB输出，提高能效。
28 nm CMOS, 2.5 V/3.3 V电源
全双工千兆以太网Class-AB轨到轨CMOS
▸创新点1：全双工架构的创新，通过合并传输、接收和终端功能，消除了传统混合和终端开销，实现了高效的宽带驱动设计（30字以上）
▸创新点2：线性Class-AB推挽输出级的创新，采用轨到轨设计，显著提高了功率效率，适用于高速收发器的宽带驱动（30字以上）
▸创新点3：自适应回声消除技术的创新，通过动态调整消除回声，实现了全双工操作，提升了系统性能和稳定性（30字以上）
▸创新点4：28 nm CMOS工艺的实现创新，通过优化设计，满足了1000BASE-T和100BASE-TX的合规性测试，同时支持2.5 V和3.3 V电源供应（30字以上）
Abstract
This paper details a duplex architecture coupled with a linear Class-AB push-pull output stage that maximizes the power ef ficiency of linear wideband drivers for high-speed transceivers. The duplex driver merges transmission, reception, and termination; eliminates hybrid and termination overhead; and enables adaptive echo cancella tion and rail-to-rail full-duplex operation. Implemented in 28 nm CMOS, this GPHY driver passes the 1000BASE-T and 100BASE-TX compliance tests using a 2.5 V supply and meets the transmit speci fications for the half-duplex 10BASE-T Ethernet using a 3.3 V supply.