A Highly Linear-in-dB Variable Gain Amplifier for IMT2000

机译：用于IMT2000的高dB线性可变增益放大器

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A linear-in-dB variable gain amplifier (VGA) with temperature and supply-voltage compensations is fabricated in a 0.5um SiGe BiCMOS process for IMT-2000 transmitter. The VGA used as a driver amplifier comprises a gain-controlled stage of current steering structure and has a variable-gain range of over 30dB. The VGA achieved a gain error of less 1.2dB over 30dB gain range from the gain at room temperature and 3V supply voltage. An OIP3 of 25dBm and an output P1dB of 7.5dBm at maximum gain of 21.8dB under 3V power supply and 30.3mA current consumption were obtained. It occupied approximately 0.5mm~2 chip size.

机译：用于IMT-2000发射器的0.5um SiGe BiCMOS工艺制造了具有温度和电源电压补偿的dB线性可变增益放大器（VGA）。用作驱动器放大器的VGA包括电流控制结构的增益控制级，其可变增益范围超过30dB。从室温和3V电源电压的增益来看，VGA在30dB增益范围内的增益误差小于1.2dB。在3V电源和30.3mA电流消耗下，最大增益为21.8dB时，OIP3为25dBm，输出P1dB为7.5dBm。它占据了大约0.5mm〜2的芯片尺寸。

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来源
《European Conference on Wireless Technology; 20031008-20031010; Munich; DE》|2003年|P.321-324|共4页
会议地点 Munich(DE);Munich(DE)
作者
Hui Dong Lee; Chung-Hwan Kim; Songcheol Hong;
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作者单位

Department of Electrical Engineering and Computer Science (EECS) Division of Electrical Engineering of Korea Advanced Institute of Science and Technology (KAIST) 373-1, Guseong-dong, Yuseong-gu, Daejeon, 305-701, Republic of Korea;

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3. A 380-MHz CMOS Linear-in-dB Variable Gain Amplifier with Gain Compensation Techniques for CDMA Systems [J] . Osamu WATANABE, Mitsuyuki ASHIDA, Tetsuro ITAKURA, IEICE Transactions on Electronics . 2003,第6期

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A Highly Linear-in-dB Variable Gain Amplifier for IMT2000

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