Title :
Low harmonic distortion class AB CMOS current output stage
Author :
Palmisano, G. ; Palumbo, G. ; Pennisi, S.
Author_Institution :
Dipartimento Elettrico, Elettronico e Sistemistico, Catania Univ., Italy
Abstract :
A novel high performance class AB current output stage which is based on active-gain enhanced cascoded mirrors is presented. It overcomes the non-linearity caused by channel-length modulation and provides a very high output resistance. The linearity performance of the proposed circuit, which is only limited by the fundamental constraints due to transistor mismatches, is also evaluated
Keywords :
CMOS analogue integrated circuits; amplifiers; harmonic distortion; integrated circuit layout; active-gain enhanced cascoded mirrors; class AB CMOS current output stage; current-mode amplifiers; high output resistance; layout design; linearity performance; low harmonic distortion; transistor mismatches; Circuits; Feedback loop; Harmonic distortion; Impedance; Linearity; Mirrors; Performance gain; Threshold voltage; Topology; Transconductance;
Conference_Titel :
Electronics, Circuits, and Systems, 1996. ICECS '96., Proceedings of the Third IEEE International Conference on
Conference_Location :
Rodos
Print_ISBN :
0-7803-3650-X
DOI :
10.1109/ICECS.1996.582620
