講員： Prof. Behzad Razavi
時間： 102年9月12日(四) 下午5:00
地點： 國立台灣大學博理館101會議室
大綱： The raw performance of pipelined ADCs primarily hinges upon that of
their constituent op amps. The voltage gain and output swing limitations
imposed by technology and supply scaling have motivated various digital
correction techniques that afford the use of low-gain op amps in highresolution ADCs Recent designs have progressively reduced the residue
amplifier complexity and gain, eventually reaching a simple resistivelyloaded differential pair with capacitive feedback.
This work explores the notion of charge steering in the design of op amps
and ADCs. It is shown that charge-steering op amps offer significant
advantages over their continuous-time counterparts. A pipelined ADC
employs charge-steering op amps to relax the trade-offs among speed,
noise, and power consumption. Applying full-rate nonlinearity and gain
error calibration, a prototype realized in 65-nm CMOS technology exhibits
a Nyquist SNDR of 52.2 dB and draws 22.8 mW at 1 GHz. The ADC also
demonstrates a new histogram-based background calibration technique.
主講人 Behzad Razavi is Professor of Electrical Enginnering at University of
簡介： California, Los Angeles. His research deals with wireless and wireline
transceivers, high-speed communication circuits, and data converters.
Author of more than 150 papers and seven books, Prof. Razavi is a
Fellow of IEEE, has served as an IEEE Distinguished Lecturer, and was
recognized as one of the top 10 authors in the 50-year history of the
International Solid-State Circuits Conference. He received the IEEE
Donald Pederson Award in 2012 for his pioneering contributions to the
design of high-speed CMOS
communication circuits.
主辦單位：國立台灣大學-聯發科技無線研究實驗室/IEEE SSCS Taipei Chapter
國立台灣大學電子工程學研究所
協辦單位：國立台灣大學電機工程學系 /國立台灣大學系統晶片中心
聯絡人 : 李小姐 (02)33663700 ext. 367