Title :
Design of high precision CMOS voltage reference
Author :
Cai, Kuming ; Tao, JiLi ; He, Qixin
Author_Institution :
Ningbo Inst. of Technol., Zhejiang Univ., Ningbo, China
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;
Conference_Titel :
Circuits,Communications and System (PACCS), 2010 Second Pacific-Asia Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-7969-6
DOI :
10.1109/PACCS.2010.5626970
