Title :
Resistively variable capacitors using general impedance convertors
Author :
Carlosena, A. ; Müller, D. ; Moschytz, G.S.
Author_Institution :
Inst. for Signal & Inf. Processing, Swiss Federal Inst. of Technol., Zurich, Switzerland
fDate :
8/1/1992 12:00:00 AM
Abstract :
The use of general impedance convertors (GICs) for the realisation of resistively variable capacitors (RVCs) is demonstrated. Such elements are useful in analogue-adaptive circuits and for neural networks. Various design concepts have been examined with the aim of finding configurations that are suitable for discrete, and complete, or partial VLSI realisation. A number of useful circuit topologies have been found. Design guidelines are given; simulations and experimental results are compared. The resulting circuits are being considered for use in adaptive telephone hybrid networks for high-speed full-duplex data transmission
Keywords :
VLSI; analogue circuits; capacitors; impedance convertors; linear integrated circuits; monolithic integrated circuits; VLSI realisation; active circuits; adaptive telephone hybrid networks; analogue-adaptive circuits; circuit topologies; full-duplex data transmission; general impedance convertors; neural networks; resistively variable capacitors; simulations;
Journal_Title :
Circuits, Devices and Systems, IEE Proceedings G
