期刊論文

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), p.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 en_US
ISSN 0925-1030
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 USA
公開徵稿
出版型式 ,電子版,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/115795 )