Temperature-insensitive current-mode square-rooting circuit using OTAs

Author

Prasertsom, Danucha ; Unhavanich, Sumalee ; Tangsrirat, Worapong

Author_Institution

Fac. of Eng. & Res. Center for Commun. & Inf. Technol. (ReCCIT), King Mongkut´´s Inst. of Technol. Ladkrabang (KMITL), Bangkok

fYear

2008

fDate

20-22 Aug. 2008

Firstpage

1139

Lastpage

1142

Abstract

A simple current-mode square-rooting circuit with temperature compensation employing operational transconductance amplifiers (OTAs) as active elements is proposed. It has been designed by using only four OTAs without the employment of additional passive elements. The current gain of the proposed circuit can be electronically controlled, thanks to the tunability property of the OTA. Simulation results are obtained to verify the theoretical analysis of the proposed circuit technique.

Keywords

compensation; current-mode circuits; operational amplifiers; current-mode square-rooting circuit; operational transconductance amplifiers; temperature compensation; tunability property; Bipolar integrated circuits; Circuit simulation; Fluid flow measurement; Information technology; Operational amplifiers; Orifices; Signal processing; Temperature; Transconductance; Transducers; Current-Mode Circuit; Operational Transconductance Amplifier (OTA); Square-Rooting;

fLanguage

English

Publisher

ieee

Conference_Titel

SICE Annual Conference, 2008

Conference_Location

Tokyo

Print_ISBN

978-4-907764-30-2

Electronic_ISBN

978-4-907764-29-6

Type

conf

DOI

10.1109/SICE.2008.4654830

Filename

4654830