Title :
A new 1.2 V BiCMOS log-domain integrator for companding current-mode filters
Author :
Punzenberger, Manfred ; Enz, Christian
Author_Institution :
Electron. Lab., Swiss Federal Inst. of Technol., Lausanne, Switzerland
Abstract :
New structures of differential and single-ended log-domain integrators are proposed, which can be used for very low supply voltage continuous-time filters. They offer a tuning range of several decades and operate at minimum supply voltages down to 1 V. The single-ended version allows very simple filter structures, whereas the differential one can be driven by signal currents which are much larger than the bias currents (class AB operation)
Keywords :
BiCMOS analogue integrated circuits; analogue processing circuits; circuit tuning; compandors; continuous time filters; integrating circuits; 1 to 1.2 V; BiCMOS log-domain integrator; LV continuous-time filters; active filters; class AB operation; companding; current-mode filters; differential integrators; low supply voltage filters; single-ended integrators; tuning range; Analog circuits; BiCMOS integrated circuits; Bipolar transistors; Capacitors; Filtering; Filters; Laboratories; Leg; Low voltage; MOSFETs;
Conference_Titel :
Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3073-0
DOI :
10.1109/ISCAS.1996.539824
