Title :
The operational conveyor amplifier-a new circuit design block
Author :
Bowers, Derek F. ; Brown, James E C
Author_Institution :
Precision Monolithics Inc., Santa Clara, CA, USA
Abstract :
A circuit design block is proposed which vastly simplifies analog circuit design in addition to performing all functions of an operational amplifier. A third input is added to the op-amp, which follows the potential on the noninverting input and effectively accepts a current input. This current is subsequently inverted in polarity and added to the inverting input. Several applications are described, including noninverting integrators and differentiators and a differential summing amplifier. While implementation of this function is possible in many ways, a simple technique using a modified op-amp technology is described. Extension to class AB operation is also discussed
Keywords :
analogue circuits; differential amplifiers; differentiating circuits; integrating circuits; operational amplifiers; analog circuit design; circuit design block; class AB operation; current input; differential summing amplifier; differentiators; inverting input; modified op-amp technology; noninverting input; noninverting integrators; operational conveyor amplifier; Analog circuits; Circuit synthesis; Differential amplifiers; Electric potential; Force feedback; Frequency; Impedance; Instruments; Operational amplifiers; Transfer functions;
Conference_Titel :
Circuits and Systems, 1990., IEEE International Symposium on
Conference_Location :
New Orleans, LA
DOI :
10.1109/ISCAS.1990.112017
