A high-speed continuous-time bandpass VHF filter in MOS technology

Author

Ismail, Mohammed ; Wassenaar, Roelof ; Morrison, William

Author_Institution

Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA

fYear

1991

fDate

11-14 Jun 1991

Firstpage

1761

Abstract

A very high frequency (VHF) second order bandpass filter has been developed. The filter is based on a minimal transistor-only all-MOS high-frequency generalized impedance converter (GIC) that simulates a passive RLC ladder. The filter poles are obtained using the internal lumped capacitances of the MOS transistor. Using this structure a very high frequency filter is obtained consuming a small chip area. The center frequency is controlled by an external bias current to the circuit. Using the GIC, a bandpass filter can be implemented in MOS technology with center frequencies in excess of 50 MHz. The filter is simulated for center frequencies of 47 MHz, 54 MHz and 63 MHz

Keywords

MOS integrated circuits; active filters; band-pass filters; ladder networks; linear integrated circuits; poles and zeros; radiofrequency filters; 47 to 63 MHz; GIC; MOS technology; MOS transistor; bandpass VHF filter; external bias current; filter poles; generalized impedance converter; internal lumped capacitances; passive RLC ladder; second order bandpass filter; very high frequency; Band pass filters; Capacitance; Circuit simulation; Filtering theory; Frequency; Impedance; MOSFETs; RLC circuits; Short circuit currents; VHF circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1991., IEEE International Sympoisum on

Print_ISBN

0-7803-0050-5

Type

conf

DOI

10.1109/ISCAS.1991.176249

Filename

176249