Title :
A versatile CMOS fully differential current amplifier
Author :
Palmisano, G. ; Pennisi, S.
Author_Institution :
Dipt. Elettrico, Elettronico e Sistemistico, Catania Univ., Italy
Abstract :
This paper presents a CMOS fully-differential current amplifier useful in a large variety of closed-loop applications, some of which are briefly discussed. The amplifier employs a class AB current output stage with high-drive capability which allows off-chip loads to be efficiently driven. It was designed in a 1.2 μm process and provides a DC gain and a gain-bandwidth product of 90 dB and 11 MHz, respectively. A circuit for the common-mode input control is also included
Keywords :
CMOS analogue integrated circuits; current-mode circuits; differential amplifiers; feedback amplifiers; operational amplifiers; 1.2 micron; 90 dB; CMOS current amplifier; class AB current output stage; closed-loop applications; common-mode input control; fully differential current amplifier; high-drive capability; CMOS technology; Circuit topology; Communication system control; Differential amplifiers; Feedback circuits; Mirrors; Operational amplifiers; Transconductance; Transfer functions; Voltage;
Conference_Titel :
Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on
Conference_Location :
Pafos
Print_ISBN :
0-7803-5682-9
DOI :
10.1109/ICECS.1999.813181
