A highly linear second-order stage for 500-MHz third-order and fifth-order filters

Author

Hadidi, Kh ; Eguchi, K. ; Matsumoto, T. ; Kobayashi, H.

Author_Institution

Dept. of Electr. Eng., Urmia Univ., Iran

Volume

3

fYear

1998

fDate

1998

Firstpage

361

Abstract

Conventional continuous-time filters employ transconductance stages for realization. A second-order conventional filter requires four transconductors. This is due to the fact that transconductors are not considered (including their loading capacitors) first order stages instead of second-order ones, as they really are. Thus, frequency of operation is severely restricted. In the new structure we use otherwise parasitic poles to realize a single stage second-order filter. Simulation results for the designed filters show 500 MHz -3 dB third and fifth-order low-pass performance. Also, simulated THD for a 600 mVp-p, 95 MHz input signal is -52 dB

Keywords

CMOS analogue integrated circuits; UHF filters; continuous time filters; linear network synthesis; low-pass filters; transfer functions; 500 MHz; continuous-time filters; fifth-order filters; highly linear second-order stage; low-pass performance; parasitic poles; single stage design; third-order filters; transconductor; Band pass filters; Bandwidth; Capacitors; Circuits; Frequency; Low pass filters; Nonlinear filters; Transconductance; Transconductors; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 1998 IEEE International Conference on

Conference_Location

Lisboa

Print_ISBN

0-7803-5008-1

Type

conf

DOI

10.1109/ICECS.1998.814009

Filename

814009