Title :
An universal audio preamplifier with active offset cancellation in a 2.0 μm BiCMOS technology
Author :
Boni, A. ; Morandi, C. ; Padoan, S. ; Pelicelli, A.
Author_Institution :
Dipt. di Ingegneria dell´´Inf., Parma Univ., Italy
Abstract :
This paper discusses the design of an integrated audio preamplifier, which provides programmable gain from -60 dB to 0 dB and can be interfaced to either balanced or unbalanced audio signal sources. Performance in terms of SDR and SNR are Hi-Fi compatible. The amplifier is part of a more complex analog ASIC, implemented in a 2 μm, ±12.5 V supply, BiCMOS technology
Keywords :
BiCMOS analogue integrated circuits; Hi-Fi equipment; application specific integrated circuits; audio-frequency amplifiers; gain control; preamplifiers; -12.5 V; 0 to -60 dB; 12.5 V; 2 micron; BiCMOS technology; Hi-Fi compatible performance; SDR; SNR; active offset cancellation; analog ASIC; balanced audio signal sources; integrated AF preamplifier; programmable gain; unbalanced audio signal sources; universal audio preamplifier; Application specific integrated circuits; BiCMOS integrated circuits; Electronics packaging; Filters; Operational amplifiers; Performance gain; Preamplifiers; Signal design; Signal processing; Switches;
Conference_Titel :
Circuits and Systems, 1998. Proceedings. 1998 Midwest Symposium on
Conference_Location :
Notre Dame, IN
Print_ISBN :
0-8186-8914-5
DOI :
10.1109/MWSCAS.1998.759455
