Title :
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
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;
Conference_Titel :
Information and Communications Technologies (IETICT 2013), IET International Conference on
Conference_Location :
Beijing
Electronic_ISBN :
978-1-84919-653-6
DOI :
10.1049/cp.2013.0042
