Current-mode piecewise-linear function generators

Author

Delgado-Restituto, Manuel ; Ceballos-Cáceres, Joaquin ; Rodríguez-Vázquez, Angel

Author_Institution

Centro Nacional de Microelectron., Seville, Spain

Volume

1

fYear

1996

fDate

12-15 May 1996

Firstpage

469

Abstract

We present a systematic design technique for current-mode piecewise-linear (PWL) function generators. It uses two building blocks: a high-resolution current rectifier, and a programmable current amplifier. We show how to arrange these blocks to obtain basic non-linearities from which generic characteristics are built through aggregations. Measurements from a 1.0 μm CMOS prototype chip show 10 pA resolution in the rectification operation and 0.6% non-linearity errors in the programmable scaling operation for 2 μA input current range

Keywords

CMOS analogue integrated circuits; function generators; piecewise-linear techniques; rectifying circuits; 1.0 micron; CMOS chip; current rectifier; current-mode piecewise-linear function generator; design; nonlinearity; programmable current amplifier; CMOS technology; Circuit synthesis; Current measurement; Piecewise linear approximation; Piecewise linear techniques; Prototypes; Rectifiers; Semiconductor device measurement; Signal generators; Signal resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-3073-0

Type

conf

DOI

10.1109/ISCAS.1996.539986

Filename

539986