A 1.2nW, 2.1ppm/°C subthreshold CMOS voltage reference without resistors

Author

Yanhan Zeng ; Yirong Huang ; Miaowang Zeng ; Hong-Zhou Tan

Author_Institution

Sch. of Inf. Sci. & Technol., Sun Yat-sen Univ., Guangzhou, China

fYear

2013

fDate

27-29 April 2013

Firstpage

112

Lastpage

116

Abstract

A voltage reference with low temperature coefficient (TC), low supply voltage and ultra-low power consumption is presented. The proposed reference is made up of MOSFETs working in subthreshold region without resistors. Therefore the advantages of ultra-low power consumption and ultrasmall area can be obtained. The best TC is 2.1ppm/°C in a temperature range of -20°C to 80°C. The supply voltage ranges from 0.65V to 5.0V, and the power consumption is 1.2nW with 1V supply voltage. The power supply rejection ratio (PSRR) without any filter capacitor at 100Hz and 10MHz is lower than -49dB and -39dB, respectively.

Keywords

CMOS integrated circuits; MOSFET; reference circuits; MOSFET; PSSR; TC; frequency 10 MHz; frequency 100 Hz; low supply voltage; low temperature coefficient; power 1.2 nW; power supply rejection ratio; subthreshold CMOS voltage reference; subthreshold region; temperature -20 degC to 80 degC; ultra-low power consumption; ultra-small area; voltage 0.65 V to 5.0 V; CMOS; subthreshold; ultra-low power; voltage reference;

fLanguage

English

Publisher

iet

Conference_Titel

Information and Communications Technologies (IETICT 2013), IET International Conference on

Conference_Location

Beijing

Electronic_ISBN

978-1-84919-653-6

Type

conf

DOI

10.1049/cp.2013.0042

Filename

6617485