Title :
Improved bandwidth, low voltage log domain building blocks
Author :
Callegari, Sergio ; Setti, Gianluca
Author_Institution :
Dipt. di Elettronica Inf. e Sistemistica, Bologna Univ., Italy
Abstract :
The possibility of operating low-voltage-supply log-domain filters at high frequencies is investigated, distinguishing the intrinsic maximum bandwidth of the translinear loops exploited for log/exp function synthesis from that of control/interface blocks. Strategies are proposed to widen the latter closer to the former. Simulation results are shown for an integrator as a validation for the considered approach
Keywords :
BiCMOS analogue integrated circuits; VHF filters; active filters; integrating circuits; low-power electronics; nonlinear filters; radiofrequency filters; 100 MHz; 2 V; LV log domain building blocks; bandwidth improvement; control/interface blocks; high frequencies; integrator; log-domain filters; log/exp function synthesis; low voltage building blocks; translinear loops; Bandwidth; Circuit simulation; Circuit synthesis; Circuit testing; Digital filters; Ear; Filtering; Frequency synthesizers; Hearing aids; Low voltage;
Conference_Titel :
Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5471-0
DOI :
10.1109/ISCAS.1999.780855
