High-frequency fully integrated OTA-C filters using a 7.2 GHz bipolar OTA

Author

Atarodi, Mojtaba ; Choma, John, Jr.

Author_Institution

Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA

fYear

1993

fDate

16-18 Aug 1993

Firstpage

1027

Abstract

Using a complementary BJT process with the maximum f(T_npn)=7.2 GHz and f(T_pnp)=4.5 GHz, an OTA with -3 db bandwidth of 7.2 GHz has been designed by proposing some broadbanding and phase-compensation techniques. To demonstrate the application in OTA-C continuous-time filter design, a 225 MHz OTA-C lowpass filter and a 250 MHz OTA-C biquadratic bandpass filter are realized and presented concisely

Keywords

VHF filters; active filters; band-pass filters; bipolar analogue integrated circuits; biquadratic filters; compensation; continuous time filters; feedforward; low-pass filters; operational amplifiers; wideband amplifiers; 225 MHz; 250 MHz; 7.2 GHz; RF filters; VHF filters; bipolar OTA; biquadratic bandpass filter; broadbanding techniques; complementary BJT process; continuous-time filter design; fully integrated OTA-C filters; high-frequency filters; lowpass filter; phase-compensation techniques; Band pass filters; Bandwidth; Bipolar transistor circuits; Broadband amplifiers; Circuit topology; Cutoff frequency; Temperature sensors; Transconductance; Tunable circuits and devices; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1993., Proceedings of the 36th Midwest Symposium on

Conference_Location

Detroit, MI

Print_ISBN

0-7803-1760-2

Type

conf

DOI

10.1109/MWSCAS.1993.343246

Filename

343246