A low-voltage, low-power subthreshold CMOS voltage reference without resistors and high threshold voltage devices

Author

Jun Zhang ; Yunling Luo ; Qiaobo Wang ; Jingjing Li ; Zhuqian Gong ; Hong-Zhou Tan ; Yunliang Long

Author_Institution

Dept. of Electron. & Commun. Eng., Sun Yat-sen Univ., Guangzhou, China

fYear

2012

fDate

2-5 Dec. 2012

Firstpage

384

Lastpage

387

Abstract

A voltage reference of low supply voltage, low power consumption, no resistors and high threshold voltage devices has been proposed and simulated using 0.18μm technology in this paper. The range of supply voltage is from 0.9V to 3V with a maximum current consumption of 532.9nA and a line sensitivity of 6.7ppm/V. Temperature compensation is enhanced by taking body effect into consideration, and a temperature coefficient lower than 25ppm/°C is achieved in most cases. The power supply rejection ratio without any filtering capacitor is -45dB at 100Hz and -15dB at 10MHz.

Keywords

CMOS integrated circuits; compensation; low-power electronics; reference circuits; frequency 10 MHz; frequency 100 Hz; low power consumption; low supply voltage; low-power CMOS voltage reference; low-voltage CMOS voltage reference; size 0.18 mum; subthreshold CMOS voltage reference; temperature compensation; voltage 0.9 V to 3 V; CMOS integrated circuits; MOSFETs; Resistors; Temperature dependence; Temperature distribution; Temperature sensors; Threshold voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (APCCAS), 2012 IEEE Asia Pacific Conference on

Conference_Location

Kaohsiung

Print_ISBN

978-1-4577-1728-4

Type

conf

DOI

10.1109/APCCAS.2012.6419052

Filename

6419052