Fully Differential Current-Mode CMOS Triode Translinear Multiplier

Author

Miguel, José M Algueta ; De la Cruz Blas, Carlos A. ; Lopez-Martin, Antonio J.

Author_Institution

Dept. of Electr. & Electron. Eng., Public Univ. of Navarra, Pamplona, Spain

Volume

58

Issue

1

fYear

2011

Firstpage

21

Lastpage

25

Abstract

A novel fully differential current-mode multiplier based on a translinear (TL) loop is presented. The transistors that form the TL loop are working in the triode region, and a novel biasing scheme is used, allowing operation in two quadrants. The biasing circuitry is designed using simple current conveyors and a common-mode control circuit. Measurement results for a chip fabricated in a 0.5-μm CMOS technology are shown to demonstrate the feasibility of the technique. Furthermore, an analysis of second-order effects is also reported.

Keywords

CMOS analogue integrated circuits; analogue multipliers; current conveyors; CMOS triode translinear multiplier; analog multipliers; biasing circuitry; common-mode control circuit; current conveyors; fully differential current-mode multiplier; second-order effects analysis; size 0.5 mum; translinear loop; CMOS integrated circuits; Current measurement; Linearity; Logic gates; MOSFETs; Mirrors; CMOS analog integrated circuits; current-mode circuits; multiplying circuits; translinear (TL) principle;

fLanguage

English

Journal_Title

Circuits and Systems II: Express Briefs, IEEE Transactions on

Publisher

ieee

ISSN

1549-7747

Type

jour

DOI

10.1109/TCSII.2010.2092821

Filename

5672777