Title :
Investigation and optimization of low-power techniques in X-band CMOS LC-VCO design
Author :
Tian, Xin-Cheng ; Liu, Szu-Ling ; Chen, Kuan-Han ; Hao, Yue
Author_Institution :
Sch. of Microelectron., Xidian Univ., Xi´´an, China
Abstract :
This paper investigates the optimization method for two low-power circuit techniques in low-power LC-VCO designs: Transformer feedback and forward body-bias. In addition to theoretical analysis, a low-power, low-voltage X-band VCO using these two techniques has also been implemented in a standard 0.18μm CMOS technology. This VCO exhibits good FOM and of -191.4dBc/Hz while the core circuit draws a DC current of 2.73mA from 0.55V low supply voltage. The excellent performance can be compared with the best reported X-band CMOS VCOs.
Keywords :
CMOS analogue integrated circuits; low-power electronics; optimisation; voltage-controlled oscillators; DC current; FOM; Transformer feedback; X-band CMOS LC-VCO design; forward body-bias; low-power techniques; optimization; size 0.18 mum; theoretical analysis; voltage 2.73 V to 0.55 V; CMOS integrated circuits; CMOS technology; Coils; Transistors; Voltage measurement; Voltage-controlled oscillators; X-band; forward body-bias; low-power; low-voltage; transformer-feedback;
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2011 International Conference of
Conference_Location :
Tianjin
Print_ISBN :
978-1-4577-1998-1
Electronic_ISBN :
Pending
DOI :
10.1109/EDSSC.2011.6117742
