110MHz 70dB CMOS variable gain amplifier

被引：0
|
作者：
Mostafa, Mohamed [1 ]
Elwan, Hassan [1 ]
Bellaour, Abdellatif [1 ]
Kramer, Brad [1 ]
Embabi, S.H.K. [1 ]
机构：
[1] Texas A&M Univ, College Station, United States
来源：
Proceedings - IEEE International Symposium on Circuits and Systems | 1999年 / 2卷
关键词：
Bandwidth - CMOS integrated circuits - Computer simulation - Electric currents - Electric potential - Gain control - MOSFET devices - Resistors - Transconductance;
D O I：
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学科分类号：
摘要：
This paper describes a CMOS variable gain amplifier (VGA) circuit that maintains a 3dB bandwidth greater than 110MHz throughout its gain range. The VGA provides a 70dB-gain control range in 2dB steps. The gain is controlled digitally through a decoder. The VGA is fully differential and is implemented in a standard 3V, 0.6 μm CMOS process. The overall supply current is below 6mA.
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