Supply noise insensitive ring VCO with on-chip adaptive bias-current and voltage-swing control

Young-Seok Park, Woo-Young Choi
2011 2011 IEEE International Symposium of Circuits and Systems (ISCAS)  
This paper demonstrates a CMOS Ring Voltage Controlled Oscillator (RVCO) whose oscillation frequency is insensitive to supply noise. Our RVCO achieves this with onchip adaptive bias-current and voltage-swing control. A prototype RVCO is fabricated with 0.13um CMOS technology and it achieves static supply voltage sensitivity of 0.013%f vco /1%-V dd and dynamic sensitivity of 0.08%-f vco /1%-V dd . I.
doi:10.1109/iscas.2011.5937543 dblp:conf/iscas/ParkC11 fatcat:6tccbl66nvfbjpol2mqx7wcx24