A 1.5 V linear transconductor with wide bandwidth and wide input and output signal swings

Author

Ramirez-Angulo, J. ; Carvajal, Carvajal ; Torralba ; Martinez-Heredia, J.

Author_Institution

Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA

Volume

5

fYear

2000

fDate

2000

Firstpage

161

Abstract

A linear voltage-to-current converter that operates with a single supply voltage close to a transistor´s threshold voltage and that has almost rail-rail input and output swings is introduced. The circuit is conceived as an input interface for current-mode signal processing systems. It also has applications for the implementation of other very low-voltage circuits like instrumentation amplifiers and common mode feedback control circuits. Simulations and experimental results of a test chip prototype in 1.2 μm CMOS technology are presented that verify the functionality of the proposed circuit and its broadband characteristics

Keywords

CMOS analogue integrated circuits; analogue processing circuits; circuit feedback; convertors; current-mode circuits; instrumentation amplifiers; low-power electronics; 1.2 mum; 1.5 V; CMOS technology; broadband characteristics; circuit functionality; common mode feedback control circuits; current-mode signal processing systems; input interface; instrumentation amplifiers; linear transconductor; linear voltage-to-current converter; low-voltage circuits; rail-rail input swing; rail-rail output swing; simulations; single supply voltage; test chip prototype; transistor threshold voltage; wide bandwidth; wide input signal swing; wide output signal swing; Bandwidth; Broadband amplifiers; CMOS technology; Circuit testing; Feedback circuits; Feedback control; Instruments; Signal processing; Threshold voltage; Transconductors;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on

Conference_Location

Geneva

Print_ISBN

0-7803-5482-6

Type

conf

DOI

10.1109/ISCAS.2000.857388

Filename

857388