Title :
A 200 MHz MOST-only resonator
Author :
Celma, S. ; Aldea, C.
Author_Institution :
Fac. de Ciencias, Zaragoza Univ., Spain
Abstract :
In this paper we report a new active resonator circuit based on pseudo-differential continuous-time transconductors for applications in low-voltage systems over the very-high frequency range. By using a 0.8 μm CMOS process, the resonator consumes less than 5.5 mW from a 2.7 V supply. A prototype 4th-order 200 MHz band pass filter with a side-band rejection lower than -80 dB confirms the feasibility of the proposed resonator in very-high frequency applications such as IF bandpass sections of RF front-end circuits. The measured dynamic range was 57 dB at IM3 of 0.5%. The active area is 0.03 mm2
Keywords :
CMOS analogue integrated circuits; VHF filters; band-pass filters; continuous time filters; current-mode circuits; resonators; 0.8 micron; 2.7 V; 200 MHz; 5.5 mW; CMOS process; IF bandpass sections; LV systems; MOST-only resonator; RF front-end circuits; active resonator circuit; band pass filter; continuous-time transconductors; low-voltage systems; pseudo-differential transconductors; CMOS technology; Ceramics; Circuits; Dynamic range; Filters; Frequency; Inductors; Q factor; Transconductors; Voltage;
Conference_Titel :
Circuits and Systems, 2001. MWSCAS 2001. Proceedings of the 44th IEEE 2001 Midwest Symposium on
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-7150-X
DOI :
10.1109/MWSCAS.2001.986200
