Design of high precision CMOS voltage reference

Author

Cai, Kuming ; Tao, JiLi ; He, Qixin

Author_Institution

Ningbo Inst. of Technol., Zhejiang Univ., Ningbo, China

Volume

2

fYear

2010

fDate

1-2 Aug. 2010

Firstpage

47

Lastpage

50

Abstract

A stable bandgap CMOS voltage reference is designed for LED driver by combining with self-starting circuit and multi-valued bias voltage generating circuit modules. The circuits are designed by using CSMC 0.5 μm CMOS process. Simulation results by Cadence software show that the temperature coefficient is about 10 ppm/°C, zero temperature coefficient is about at 31°C, close to room temperature. And good temperature characteristics can be achieved in practical applications. Meanwhile, power supply rejection ratio is up to 80 dB, which can meet the requirement of LED driver IC.

Keywords

CMOS integrated circuits; driver circuits; integrated circuit design; light emitting diodes; CMOS process; LED driver IC; bandgap CMOS voltage reference; cadence software; multivalued bias voltage generating circuit modules; power supply rejection ratio; self-starting circuit; size 0.5 mum; zero temperature coefficient; CMOS integrated circuits; Light emitting diodes; Bandgap reference; power source rejection ratio; self starting; temperature coefficient;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits,Communications and System (PACCS), 2010 Second Pacific-Asia Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-7969-6

Type

conf

DOI

10.1109/PACCS.2010.5626970

Filename

5626970