Title :
Operational floating amplifier
Author_Institution :
Dept. of Electr. Eng., Delft Univ. of Technol., Netherlands
fDate :
4/1/1990 12:00:00 AM
Abstract :
The operational floating amplifier (OFA) is the most general `nullor´ implementation, which is a basic active two-port network element. The definition, applications, and design of OFAs are described. The OFA accurately equates two voltages connected to the terminals of the input port, like a standard operational amplifier, but in addition, an OFA accurately equates two currents connected to the terminals of the output port. Specific applications are given, e.g.: current amplifiers, voltage-to-current convertors, and gyrators. The design of class-A and class-AB OFAs based on several topologies is covered
Keywords :
active networks; multiport networks; operational amplifiers; active two-port network element; class-A; class-AB; current amplifiers; gyrators; nullor implementation; op amp based circuit; operational floating amplifier; topologies; voltage-to-current convertors;
Journal_Title :
Circuits, Devices and Systems, IEE Proceedings G
