A new current mirror layout technique for improved matching characteristics

Author

Lan, Mao-Feng ; Tammineedi, Anilkumar ; Geiger, Randall

Author_Institution

Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA, USA

Volume

2

fYear

1999

fDate

1999

Firstpage

1126

Abstract

This paper proposes a new current mirror layout technique to improve matching characteristics in the presence of parameter gradient. Effects of threshold gradients across a mirror on the matching characteristics of current mirrors are discussed. New and the existing layouts are compared with computer simulations for threshold voltage gradients at all angles across the active area. Results show a significant improvement in matching characteristics of the proposed structures over what is achievable with existing layout techniques

Keywords

CMOS analogue integrated circuits; circuit layout CAD; circuit simulation; current mirrors; integrated circuit layout; computer simulations; current mirror layout technique; gradient modelling; improved matching characteristics; linear gradient; parameter gradient; segmented integral approach; threshold gradients effect; Computer simulation; Degradation; Differential amplifiers; Geometry; Linear circuits; Mirrors; Semiconductor device modeling; Statistical analysis; Threshold voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1999. 42nd Midwest Symposium on

Conference_Location

Las Cruces, NM

Print_ISBN

0-7803-5491-5

Type

conf

DOI

10.1109/MWSCAS.1999.867835

Filename

867835