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2003•Unpublished venueRequires access

A 110 MHz 70 dB CMOS variable gain amplifier

M. Abdelateef Mostafa, H.O. Elwan, A. Bellaour, Bernard M. Kramer, S.H.K. Embabi

Open publisher page 17 citations

Abstract

This paper describes a CMOS variable gain amplifier (VGA) circuit that maintains a 3 dB bandwidth greater than 110 MHz throughout its gain range. The VGA provides a 70 dB-gain control range in 2 dB steps. The gain is controlled digitally through a decoder. The VGA is fully differential and is implemented in a standard 3 V, 0.6 /spl mu/m CMOS process. The overall supply current is below 6 mA.

About this research paper

What this paper is about

This paper describes a CMOS variable gain amplifier (VGA) circuit that maintains a 3 dB bandwidth greater than 110 MHz throughout its gain range. The VGA provides a 70 dB-gain control range in 2 dB steps. The gain is controlled digitally through a decoder. The VGA is fully differential and is implemented in a standard 3 V, 0.6 /spl mu/m CMOS process. The overall supply current is below 6 mA.

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OpenAlex reports 17 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

This paper describes a CMOS variable gain amplifier (VGA) circuit that maintains a 3 dB bandwidth greater than 110 MHz throughout its gain range. The VGA provides a 70 dB-gain control range in 2 dB steps. The gain is controlled digitally through a decoder. The VGA is fully differential and is implemented in a standard 3 V, 0.6 /spl mu/m CMOS process. The overall supply current is below 6 mA.

Key concepts: Video Graphics Array, Variable-gain amplifier, Automatic gain control, CMOS, Fully differential amplifier, Open-loop gain, Bandwidth (computing), Electrical engineering

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