https://scholars.lib.ntu.edu.tw/handle/123456789/498165
標題: | A 40.4-dB Range, 0.73-dB Step, and 0.07-dB Error Programmable Gain Amplifier Using Gain Error Shifting Technique | 作者: | Wang, L.-S. Ku, P.-C. Ko, P.-T. Chung, C.-J. LIANG-HUNG LU |
關鍵字: | Decibel (dB)-linear; digitally controlled variable gain amplifier; programmable gain amplifier | 公開日期: | 2019 | 卷: | 66 | 期: | 7 | 起(迄)頁: | 1109-1113 | 來源出版物: | IEEE Transactions on Circuits and Systems II: Express Briefs | 摘要: | A novel gain error shifting technique suitable for the design of high resolution programmable gain amplifiers (PGAs) is presented in this brief. By cascading the hybrid-exponential approximated PGAs, the gain error in a decibel (dB)-linear characteristic is effectively reduced while the control range increases. Based on the proposed technique, a PGA with a moderate gain range and an extremely small gain step and error is developed. The PGA is implemented by using a 0.18- {\mu }\text{m} CMOS process, occupying an area of 0.283 mm2. Operated at a supply voltage of 1.8 V, the fabricated circuit consumes a dc power of 7.02 mW. For 56 steps in the dB-linear control, the measurement results indicate a gain range of 40.4 dB, gain step of 0.73 dB and gain error of 0.07 dB. Measured at the highest gain mode, the PGA exhibits a bandwidth from 2.6 kHz to 14 MHz and input-referred noise of 29.33 nV/ \surd Hz, while at the lowest gain, the bandwidth is measured from 2.6 kHz to 84.5 MHz and \text{P}-{{\text {in-1dB} }} is 6.7 dBm. © 2004-2012 IEEE. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/498165 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85055877429&doi=10.1109%2fTCSII.2018.2878919&partnerID=40&md5=384dcff59375384f829a3da603b51b75 |
ISSN: | 15497747 | DOI: | 10.1109/TCSII.2018.2878919 | SDG/關鍵字: | Bandwidth; Errors; Linear control systems; Programmed control systems; Voltage regulators; Control range; Decibels (dB); Digitally controlled; High resolution; Linear characteristics; Linear controls; Programmable gain amplifier; Supply voltages; Variable gain amplifiers |
顯示於: | 電機工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。