Title :
CMOS transconductor design for VHF filtering applications
Author :
Zhenying, Luo ; Li, M.-F. ; Lian, Yong ; Rustagi, S.C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
A new differential input CMOS transconductor circuit for VHF filtering application is introduced. The new circuit has a very high frequency bandwidth, large linear differential mode input range and good common mode signal rejection capability. Using 0.35 μm CMOS technology with 3 V power supply, the transconductor has a 0.9 V linear differential input range with a -54.6dB total harmonic distortion (THD) and more than 1 GHz - 3dB bandwidth. A 3rd order elliptic low pass gm-C filter with a cutoff frequency of 150MHz is demonstrated as an application of the new transconductor.
Keywords :
CMOS analogue integrated circuits; VHF filters; continuous time filters; elliptic filters; harmonic distortion; low-pass filters; 0.35 micron; 150 MHz; 3 V; CMOS; THD; VHF filtering applications; common mode signal rejection; cutoff frequency; differential input; elliptic low pass filter; harmonic distortion; linear differential mode input range; transconductor design; very high frequency bandwidth; Band pass filters; Bandwidth; CMOS technology; Filtering; Frequency; Power harmonic filters; Power supplies; Total harmonic distortion; Transconductors; VHF circuits;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205614
