题目/Title：A 4-40 Gb/s PAM-4 transmitter with a hybrid driver in 65 nm CMOS technology

作者/Author：
                        Dengjie Wang,Hong Chen,Wenhuan Luan,Xin Lin,Fangxu Lv,Ziqiang Wang,Hanjun Jiang,Chun Zhang,Zhihua Wang

会议/Conference：MWSCAS 2019

地点/Location：Dallas, TX, USA

年份/Issue Date：2019.4-7 Aug.

页码/pages：pp. 251 - 254

摘要/Abstract：
This paper presents a 4-40 Gb/s PAM-4 transmitter using a novel hybrid driver. Different from conventional current-mode (CM) drivers with poor linearity and source-series terminated (SST) drivers with limited differential output swing, the proposed hybrid driver delivers a differential output swing exceeding the supply voltage with high linearity using a combination structure of the CM and SST driver. In addition, a 4-40 Gb/s quarter-rate transmitter with one-tap feedforward equalization is designed in 65nm CMOS technology using the hybrid driver, yielding a 1.8V differential peak-to-peak output swing at 1.2 V supply voltage with a 96.4% ratio of level mismatch.