Transformer feedback based CMOS amplifiers

Author

Bhagavatula, Venumadhav ; Rudell, Jacques C.

Author_Institution

Dept. of Electr. Eng., Univ. of Washington, Seattle, WA, USA

fYear

2012

fDate

20-23 May 2012

Firstpage

237

Lastpage

240

Abstract

Analysis of several impedance matching networks used in both common source and common gate amplifiers with reactive feedback are presented. Five fundamental topologies for transformer feedback based closed-loop amplifiers are identified and their relative merits with respect to silicon area and power consumption are discussed. In addition, a design methodology to achieve both narrow and wideband matching is derived. A 5 GHz wideband amplifier designed in a TSMC 90-nm CMOS process is used to benchmark the different schemes. The calculated input impedance is compared with simulation results.

Keywords

CMOS analogue integrated circuits; impedance matching; integrated circuit design; low-power electronics; microwave amplifiers; wideband amplifiers; CMOS amplifier; TSMC CMOS process; closed-loop amplifier; common gate amplifier; common source amplifier; frequency 5 GHz; impedance matching network; narrow matching; power consumption; reactive feedback; silicon area; size 90 nm; transformer feedback; wideband amplifier design; wideband matching; CMOS integrated circuits; Impedance matching; Integrated circuit modeling; Logic gates; Topology; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), 2012 IEEE International Symposium on

Conference_Location

Seoul

ISSN

0271-4302

Print_ISBN

978-1-4673-0218-0

Type

conf

DOI

10.1109/ISCAS.2012.6271773

Filename

6271773