Addressing the common-mode (CM) noise issue in a Serializer/Deserializer (SerDes) raises a variety of challenges. To address those types of challenges, techniques are presented herein that support cascading multiple metal–oxide–semiconductor field-effect transistors (MOSFETs) in a current-mode logic (CML) output buffer to reduce the CM noise in a SerDes with nearly no impact on, among other things, cost, thermal performance, chip real estate, and power consumption.
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Lou, Jianquan; Bhobe, Alpesh; Zhang, Hailong; and Li, Xiao, "CASCADE MULTIPLE MOSFET IN CURRENT-MODE LOGIC BUFFER TO REDUCE COMMON MODE NOISE OF SERDES", Technical Disclosure Commons, (March 12, 2021)