All CMOS temperature, supply voltage and process independent current reference

Author

Yi, Wang ; Lenain, He ; Xiaolang, Yan

Author_Institution

Zhejiang Univ., Hangzhou

fYear

2007

fDate

22-25 Oct. 2007

Firstpage

600

Lastpage

603

Abstract

This paper describes an all CMOS current reference which generates temperature, supply voltage and process independent reference current. In such circuit, sub-threshold design and the body effect have been used to do the temperature compensation. Since only CMOS transistors are used here, the impact of process variation on reference current has been minimized. Cascode and feedback structure have been used to improve the power supply reject ratio. The Precision of reference current is plusmn 5.2% when considering the process, supply voltage and temperature variation at the same time. The circuit has been designed and simulated with CSMC 0.5um mixed-signal process.

Keywords

CMOS integrated circuits; transistors; CMOS temperature; CMOS transistors; CSMC mixed-signal process; process independent current reference; reference current; supply voltage; temperature compensation; CMOS process; Circuits; Feedback; Helium; Power supplies; Resistors; Temperature distribution; Topology; Very large scale integration; Voltage; All CMOS; Body Effect; Current Reference; Process Variation;

fLanguage

English

Publisher

ieee

Conference_Titel

ASIC, 2007. ASICON '07. 7th International Conference on

Conference_Location

Guilin

Print_ISBN

978-1-4244-1132-0

Electronic_ISBN

978-1-4244-1132-0

Type

conf

DOI

10.1109/ICASIC.2007.4415702

Filename

4415702