教師資料查詢 | 類別: 期刊論文 | 教師: 施鴻源 Shih, Horng-yuan (瀏覽個人網頁)

標題:A Wideband Current Amplifier with DC-offset Cancellation Utilizing Chopper Modulation
學年107
學期2
出版(發表)日期2019/02/01
作品名稱A Wideband Current Amplifier with DC-offset Cancellation Utilizing Chopper Modulation
作品名稱(其他語言)
著者Horng-Yuan Shih, Yu-Chuan Chang, Cheng-Wei Yang
單位
出版者
著錄名稱、卷期、頁數Analog Integrated Circuits and Signal Processing 98(2), 291-297
摘要A wideband current amplifier with DC-offset cancellation utilizing chopper modulation is proposed. Combining series–series feedback with backgate driven choppers, a wideband current amplifier with DC-offset cancellation is realized. As consumed a power of 1.495 mW under a supply voltage of 1.8 V, measured bandwidth of the current amplifier is 120 MHz, which leads the current amplifier can be adopted to compose the analog baseband of a wideband direct-conversion receiver with bandwidth of 240 MHz (twice of the baseband bandwidth). Measured current gain of the current amplifier is 15 dB. Measured output DC-offset without and with DC-offset cancellation are − 70.8 dBV and − 91 dBV, respectively. Thus, DC-offset reduction of 20 dB is achieved.
關鍵字Current amplifier;DC-offset cancellation;Chopper modulation;Analog baseband;Wideband;Receiver
語言英文(美國)
ISSN0925-1030
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者Horng-Yuan Shih
審稿制度
國別美國
公開徵稿
出版型式,電子版,紙本
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