Title :
A 280NA, 87PPM/°C, high PSRR full CMOS voltage reference and its application
Author :
Qin, Song ; Li, Hongxing ; Mangelsdorf, Chris
Author_Institution :
Analog Devices Inc., Shanghai, China
Abstract :
An ultra low quiescent current voltage reference generator with a supply voltage ranging from 1.5V to 3.3V has been implemented in 0.35um process. It is a full CMOS voltage reference which doesn´t need bipolar devices and resistors. The quiescent current is only 280nA in normal operation and the temperature coefficient is 87ppm/°C from -25°C to 85°C. Its power supply rejection ratio without any filtering capacitor can achieve -49dB at 1kHz and the circuit takes 0.027mm2 die area.
Keywords :
CMOS integrated circuits; power integrated circuits; reference circuits; CMOS voltage reference; PSRR; bipolar device; current 280 nA; filtering capacitor; frequency 1 kHz; gain -49 dB; power supply rejection ratio; resistor; size 0.35 mum; supply voltage; temperature -25 degC to 85 degC; ultra low quiescent current voltage reference generator; voltage 1.5 V to 3.3 V; Area measurement; CMOS integrated circuits; CMOS process; MOSFETs; Power demand; Subspace constraints; low quiescent current; subthreshold; temperature compensation; voltage reference;
Conference_Titel :
Semiconductor Conference Dresden-Grenoble (ISCDG), 2012 International
Conference_Location :
Grenoble
Print_ISBN :
978-1-4673-1717-7
DOI :
10.1109/ISCDG.2012.6360032
