A programmable current mirror for analog trimming using single poly floating-gate devices in standard CMOS technology

Author

Jackson, Scott A. ; Killens, Jacob C. ; Blalock, Benjamin J.

Author_Institution

Dept. of Electr. & Comput. Eng., Mississippi State Univ., MS, USA

Volume

48

Issue

1

fYear

2001

fDate

1/1/2001 12:00:00 AM

Firstpage

100

Lastpage

102

Abstract

This paper describes a programmable current mirror comprised of single-poly floating-gate devices. By programming the threshold voltage of the floating-gate devices, a current mirror´s input-output current mismatch can be trimmed at a desired current level. This programmability allows accurate drain current matching to be achieved without using large gate area devices. A prototype of the programmable current mirror fabricated in a 0.5-micron digital CMOS technology achieves 0.04% input-output current matching

Keywords

CMOS analogue integrated circuits; current mirrors; programmable circuits; 0.5 micron; analog trimming; current level; drain current matching; input-output current mismatch; large gate area devices; programmable current mirror; single poly floating-gate devices; standard CMOS technology; threshold voltage; CMOS technology; Circuits; Impedance matching; Jacobian matrices; Mirrors; Operational amplifiers; Paper technology; Prototypes; Threshold voltage; Tunneling;

fLanguage

English

Journal_Title

Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1057-7130

Type

jour

DOI

10.1109/82.913192

Filename

913192