H.O. Elwan, A. El Adawi, Mohammed Ismail, H. Olsson, Ahmed M. Soliman
Abstract
A novel technique to implement a digitally controlled precise dB-linear variable gain amplifier (VGA) in CMOS technology is proposed. The technique is used to realise a robust low power CMOS VGA circuit without component spread. Experimental results from a 1.2 µm CMOS chip are provided.
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A novel technique to implement a digitally controlled precise dB-linear variable gain amplifier (VGA) in CMOS technology is proposed. The technique is used to realise a robust low power CMOS VGA circuit without component spread. Experimental results from a 1.2 µm CMOS chip are provided.
Key concepts: Video Graphics Array, Variable-gain amplifier, CMOS, Electronic engineering, Amplifier, Chip, Electrical engineering, Automatic gain control