Title :
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
Abstract :
Using a complementary BJT process with the maximum f(Tnpn )=7.2 GHz and f(Tpnp)=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;
Conference_Titel :
Circuits and Systems, 1993., Proceedings of the 36th Midwest Symposium on
Conference_Location :
Detroit, MI
Print_ISBN :
0-7803-1760-2
DOI :
10.1109/MWSCAS.1993.343246
