66904

A Wideband Variable Gain Amplifier using 0.13m CMOS Technology

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Last updated: 04 Jan 2025

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Abstract

A wideband variable gain amplifier (VGA) design is introduced with two different schemes. It is based on a fully differential amplifier with resistive loads and a Negative Miller Capacitance technique is used to increase the bandwidth of the amplifier. The amplifier consists of three stages and the gain is varied using the second and third stages, where they are degenerated by a voltage controlled variable resistance. The design is ready to be implemented with MOSFETs using UMC 0.13mm technology. The supply voltage is 1.2V, and achieved gain is up to 35 dB with a minimum bandwidth of 1 GHz. Two design schemes are discussed, describing the tradeoff between the dynamic range of the variable gain and the bandwidth.

DOI

10.21608/mjeer.2012.66904

Authors

First Name

Abd El-Moneam Abd El-Bary

Last Name

Nasser

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Affiliation

Department of Electronics and Communications, Arab Academy for Science and Technology, Alexandria, Egypt

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First Name

Amr E.

Last Name

Rizk

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Affiliation

Department of Electronics and Communications, Arab Academy for Science and Technology, Alexandria, Egypt

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Volume

22

Article Issue

1

Related Issue

9618

Issue Date

2012-01-01

Receive Date

2019-12-30

Publish Date

2012-01-01

Page Start

23

Page End

32

Print ISSN

1687-1189

Online ISSN

2682-3535

Link

https://mjeer.journals.ekb.eg/article_66904.html

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https://mjeer.journals.ekb.eg/service?article_code=66904

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4

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Original Article

Type Code

1,088

Publication Type

Journal

Publication Title

Menoufia Journal of Electronic Engineering Research

Publication Link

https://mjeer.journals.ekb.eg/

MainTitle

A Wideband Variable Gain Amplifier using 0.13m CMOS Technology

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Article

Created At

22 Jan 2023