Finding all elementary circuits exploiting transconductance

Author

Klumperink, Eric A M ; Bruccoleri, Federico ; Nauta, Bram

Author_Institution

MESA Res. Inst., Twente Univ., Enschede, Netherlands

Volume

48

Issue

11

fYear

2001

fDate

11/1/2001 12:00:00 AM

Firstpage

1039

Lastpage

1053

Abstract

Commonly used elementary circuits like single-transistor amplifier stages, the differential pair, and current mirrors basically exploit the transconductance property of transistors. This paper aims at finding all elementary transconductance-based circuits. For this purpose, all graphs of two-port circuits with one or two voltage controlled current sources are generated systematically. This results in 150 graphs of "finite transactance two-port circuits" with at least one nonzero transmission parameter. Each of them can be implemented in various ways using transistors and resistors, covering many commonly required types of two-ports. To illustrate the usefulness of the technique several alternative circuit implementations for current amplifiers and voltage followers are generated. A new wide-band low-noise amplifier generated with the technique was realized in 0.35-μm CMOS

Keywords

CMOS analogue integrated circuits; circuit CAD; current mirrors; directed graphs; integrated circuit design; network topology; operational amplifiers; two-port networks; wideband amplifiers; CMOS; all-elementary transconductance-based circuits; circuit synthesis; circuit topology; computer-aided design; current amplifiers; current mirrors; differential pair; directed graphs; finite transactance circuits; finite transactance concept; negative feedback; nonzero transmission parameter; open-loop circuits; single-transistor amplifier stages; systematic circuit generation; two-port circuits; voltage controlled current sources; voltage followers; wide-band low-noise amplifier; AC generators; Broadband amplifiers; Circuits; Control systems; Differential amplifiers; Low-noise amplifiers; Mirrors; Resistors; Transconductance; Voltage control;

fLanguage

English

Journal_Title

Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1057-7130

Type

jour

DOI

10.1109/82.982356

Filename

982356