Title :
A low-voltage fully-differential BiCMOS op amp for polyphase filter
Author :
Blakiewicz, G. ; Jakusz, Jacek
Author_Institution :
Fac. of Electron., Telecommun. & Informatics, Tech. Univ. Gdansk, Poland
Abstract :
This article presents a low-voltage fully-differential operational amplifier for a polyphase filter for mobile communication receivers. Due to a high gain-bandwidth 200 MHz and a low noise 6.7 nV/√(Hz) of the amplifier the filter spurious free dynamic range SFDR is 95 dB and a noise floor at the output is 15 μVrms. The 5th order polyphase (10th order band pass) filter fabricated in 0.8 μm BiCMOS process dissipates 33 mW from a single 3.3 V supply.
Keywords :
BiCMOS analogue integrated circuits; active filters; band-pass filters; differential amplifiers; integrated circuit noise; operational amplifiers; 0.8 micron; 3.3 V; 33 mW; BiCMOS; band pass filter; bandpass filter; fully-differential amplifier; gain-bandwidth; mobile communication receivers; noise floor; op amp; polyphase filter; spurious free dynamic range; Band pass filters; Bandwidth; BiCMOS integrated circuits; Differential amplifiers; Dynamic range; Frequency; Mirrors; Operational amplifiers; Resistors; Voltage;
Conference_Titel :
Circuits and Systems for Communications, 2002. Proceedings. ICCSC '02. 1st IEEE International Conference on
Print_ISBN :
5-7422-0260-1
DOI :
10.1109/OCCSC.2002.1029041
