Temperature-Insensitive Current-Mode Square-Rooting Circuit Using Only Two CDTAs

Author

Mongkolwai, Pratya ; Prasertsom, Danucha ; Tangsrirat, Worapong ; Surakampontorn, Wanlop

Author_Institution

Fac. of Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok

fYear

2008

Firstpage

62

Lastpage

65

Abstract

A simple circuit configuration of the temperature-insensitive current-mode square-rooting circuit using current differencing transconductance amplifiers (CDTAs) as active components is described. It has been designed by using only two CDTAs without the use of external passive elements. The current gain of the proposed circuit can be adjusted electronically by an external bias current, thanks to the tunability property of the CDTA. PSPICE simulation results are employed to confirm the theoretical analysis.

Keywords

SPICE; amplifiers; current-mode circuits; CDTA; PSPICE simulation; circuit configuration; current differencing transconductance amplifiers; external bias current; external passive elements; temperature-insensitive current-mode square-rooting circuit; Circuit simulation; Current measurement; Equations; Fluid flow measurement; Impedance; Orifices; SPICE; Signal processing; Transconductance; Transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Information Technologies, 2008. ISCIT 2008. International Symposium on

Conference_Location

Lao

Print_ISBN

978-1-4244-2335-4

Electronic_ISBN

978-1-4244-2336-1

Type

conf

DOI

10.1109/ISCIT.2008.4700155

Filename

4700155