| 一种带宽为3.8GHz，增益步长为0.1dB的可编程增益放大器 |
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| 引用本文： | 林楠,方飞,洪志良,方昊. 一种带宽为3.8GHz，增益步长为0.1dB的可编程增益放大器[J]. 半导体学报, 2014, 35(3): 035004-6 |
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| 作者姓名： | 林楠 方飞 洪志良 方昊 |
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| 摘 要： | A broadband programmable gain amplifier（PGA） with a small gain step and low gain error has been designed in 0.13 m CMOS technology. The PGA was implemented with open-loop architecture to provide wide bandwidth. A two-stage gain control method, which consists of a resistor ladder attenuator and an active fine gain control stage, provides the small gain step. A look-up table based gain control method is introduced in the fine gain control stage to lower the gain error.The proposedPGAshows a decibel-linear variable gainfrom4 to20 dB with a gain step of 0.1 dB and a gain error less than˙0.05 dB. The 3-dB bandwidth and maximum IIP3 are 3.8 GHz and 17 dBm, respectively.
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| 关 键 词： | 可编程增益放大器 dBm GHz 增益误差 CMOS技术 增益控制 控制阶段 PGA |
A 3.8 GHz programmable gain amplifier with a 0.1 dB gain step |
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| Lin Nan,Fang Fei,Hong ZhiLiang and Fang Hao. A 3.8 GHz programmable gain amplifier with a 0.1 dB gain step[J]. Chinese Journal of Semiconductors, 2014, 35(3): 035004-6 |
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| Authors: | Lin Nan Fang Fei Hong ZhiLiang Fang Hao |
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| Affiliation: | State Key Laboratory of ASIC and Systems, Fudan University, Shanghai 201203, China;State Key Laboratory of ASIC and Systems, Fudan University, Shanghai 201203, China;Telink Semiconductor Co, Ltd, Shanghai 201203, China;State Key Laboratory of ASIC and Systems, Fudan University, Shanghai 201203, China;LSI Corporation, 1320 Ridder Park Drive, San Jose, CA 95131, USA |
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| Abstract: | variable gain amplifier programmable gain amplifier decibel-linear gain CMOS integrated circuits hard disk drives |
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| Keywords: | variable gain amplifier programmable gain amplifier decibel-linear gain CMOS integrated circuits hard disk drives |
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