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Wideband high dynamic range CMOS variable gain amplifier for low voltage and low power wireless applications

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4 Author(s)
J. K. Kwon ; Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea ; K. D. Kim ; W. C. Song ; G. H. Cho

A high frequency CMOS variable gain amplifier (VGA) employing a new gain stage cell is proposed. A design technique based on the proposed VGA enables enhancement of its operating frequency up to about 350 MHz with a gain control range of 84 dB. The power consumption of the VGA implemented using a 0.18 μm CMOS standard process is about 3 mA at 1.8 V supply voltage.

Published in:

Electronics Letters  (Volume:39 ,  Issue: 10 )