Title :
Thousand and one improvements on current operational amplifiers
Author_Institution :
Dept. of Microelectron., Tech. Univ. of Brno, Czech Republic
fDate :
30 May-2 Jun 1994
Abstract :
This paper presents a number of possibilities to improve the performance of main building blocks of current operational amplifiers. Three methods of lowering the input impedance of current buffers are described. Further, enhancements in the performance of the output stages, in order to obtain multiple output terminals as well as high voltage ranges and high output impedances available at the output terminals, are shown. Finally, a new current operational amplifier architecture suitable for low-power designs is presented
Keywords :
buffer circuits; differential amplifiers; electric impedance; feedback amplifiers; operational amplifiers; current buffers; current operational amplifiers; high output impedances; high voltage ranges; input impedance reduction; low-power designs; multiple output terminals; opamp architecture; output stage performance enhancement; Differential amplifiers; Impedance; Joining processes; Microelectronics; Negative feedback; Operational amplifiers; Proposals; Signal processing; Transconductance; Voltage;
Conference_Titel :
Circuits and Systems, 1994. ISCAS '94., 1994 IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-1915-X
DOI :
10.1109/ISCAS.1994.409430
