Title :
Wideband time-delay circuit
Author :
Chang, Yao-Wei ; Yan, Tzu-Chao ; Kuo, Chien-Nan
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao-Tung Univ., Hsinchu, Taiwan
Abstract :
Limitations of the delay bandwidth in active delay circuits can be significantly improved in high-order transfer functions. In this paper, a flat wideband delay circuit is presented using the 2nd-order form of the Padé approximant. The delay circuit is designed and implemented in 0.18 μm CMOS technology. The measured results show that the circuit achieves a delay time of 49 psec in the GHz frequency range. The power consumption of the core circuit is 7.88 mW from 1.8 V supply voltage. The entire die occupies an area of 520×820 μm2.
Keywords :
CMOS integrated circuits; delay circuits; power consumption; CMOS technology; Pade approximant; core circuit; high-order transfer functions; power 7.88 mW; power consumption; size 0.18 mum; time 49 ps; voltage 1.8 V; wideband time-delay circuit; CMOS integrated circuits; Delay; Delay lines; Dispersion; Transfer functions; Wideband; Delay line; Padé approximant; all-pass filter (APF); delay bandwidth product (DBW); group delay;
Conference_Titel :
Microwave Integrated Circuits Conference (EuMIC), 2011 European
Conference_Location :
Manchester
Print_ISBN :
978-1-61284-236-3
