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

fYear

2002

fDate

2002

Firstpage

46

Lastpage

49

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 μV_rms. 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;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems for Communications, 2002. Proceedings. ICCSC '02. 1st IEEE International Conference on

Print_ISBN

5-7422-0260-1

Type

conf

DOI

10.1109/OCCSC.2002.1029041

Filename

1029041