Title :
High-drive CMOS current-feedback opamp
Author :
Giustolisi, G. ; Palmisano, G. ; Palumbo, G. ; Pennisi, S.
Author_Institution :
DEES, Catania Univ., Italy
Abstract :
A new design of a CMOS current-feedback operational amplifier with high-drive capability is presented. The amplifier, fabricated with a 1.2-μm CMOS technology, occupies 0.16 mm2 of area and dissipates 13.5 mW of dc power from a 5 V supply. It is able to drive a load resistance as low as 50 Ω with an output sinusoidal voltage of 2 Vpp and with a total harmonic distortion better than -60 dB at 10 kHz. Moreover, the worst-case open-loop gain and gain-bandwidth product is 70 dB and 6 MHz, respectively
Keywords :
CMOS analogue integrated circuits; digital simulation; feedback amplifiers; network analysis; operational amplifiers; -60 dB; 1.2 mum; 10 kHz; 13.5 mW; 2 V; 5 V; 6 MHz; 70 dB; CMOS current-feedback operational amplifier; circuit analysis; gain-bandwidth product; load resistance; open-loop gain; simulation; total harmonic distortion; Analog circuits; Bandwidth; CMOS technology; Drives; Mirrors; Operational amplifiers; Power amplifiers; Threshold voltage; Total harmonic distortion; Transconductance;
Conference_Titel :
Circuits and Systems, 1997. Proceedings of the 40th Midwest Symposium on
Conference_Location :
Sacramento, CA
Print_ISBN :
0-7803-3694-1
DOI :
10.1109/MWSCAS.1997.666075
