Title :
A 94dB 1.6GHz SiGe fully differential operational amplifier using a novel class AB output stage
Author :
Cascella, Damiano ; Cannone, Francesco ; Avitabile, Gianfranco ; Coviello, Giuseppe
Author_Institution :
Dipt. di Elettrotec. ed Elettron., Politec. di Bari, Bari, Italy
Abstract :
The paper presents a wideband fully differential operational amplifier in 0.35μm SiGe technology. The circuit provides a gain of 94dB and a 1.6GHz unity gain bandwidth drawing 25 mA from 3.3V supply voltage. The circuit employs a novel class AB output stage and it was used to generate wideband low impedance voltage references for a high speed A/D converter.
Keywords :
analogue-digital conversion; operational amplifiers; SiGe; SiGe technology; class AB output stage; current 25 mA; frequency 1.6 GHz; high speed A/D converter; size 0.35 mum; voltage 3.3 V; wideband fully differential operational amplifier; wideband low impedance voltage references; Bandwidth; Broadband amplifiers; Circuits; Differential amplifiers; Germanium silicon alloys; Operational amplifiers; Paper technology; Silicon germanium; Voltage; Wideband;
Conference_Titel :
Circuits and Systems (MWSCAS), 2010 53rd IEEE International Midwest Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-7771-5
DOI :
10.1109/MWSCAS.2010.5548792
