Title :
A 1.2V Wide-Band Active-RC Filter for Wireless Communication Receivers
Author :
Cha, Sanghyun ; Yang, Huikwan ; Lee, Seungyun ; Lee, Sangheon ; Lim, Jinup ; Choi, Joongho
Author_Institution :
Dept. of Electr. & Comput. Eng., Seoul Univ.
Abstract :
This paper presents the design of a 1.2 V wideband active-RC filter for wireless communication receivers. The topology of this filter is the 5 th-order Chebyshev-II lowpass filter type. The 3 dB bandwidth is 20 MHz while the stopband attenuation larger than 45 dB is obtained. For a single battery-powered system, the filter was designed to operate at 1.2 V power supply. To compensate RC variations by variation of fabrication process, operating temperature and supply voltage, the tuning circuit is included on same chip. The simulation result of 3rd-order input intercept point (IIP3) is about 31 dBm. The filter is fabricated in a 0.25-mum 1P5M standard CMOS technology and dissipates 55 mA for a supply voltage of 1.2 V
Keywords :
CMOS integrated circuits; Chebyshev filters; RC circuits; active filters; low-pass filters; radio receivers; 0.25 micron; 1.2 V; 55 mA; Chebyshev-II lowpass filter; standard CMOS technology; topology; wide-band active-RC filter; wireless communication receiver; Attenuation; Bandwidth; CMOS technology; Chebyshev approximation; Filters; Power supplies; Topology; Voltage; Wideband; Wireless communication;
Conference_Titel :
TENCON 2006. 2006 IEEE Region 10 Conference
Conference_Location :
Hong Kong
Print_ISBN :
1-4244-0548-3
Electronic_ISBN :
1-4244-0549-1
DOI :
10.1109/TENCON.2006.343802
