DocumentCode
1620728
Title
Resistively variable capacitors: voltage and current approaches
Author
Serrano, Luis ; Carlosena, Alfonso
Author_Institution
Dept. of Electr. Eng. & Comput. Sci., Zaragoza Univ., Spain
fYear
1992
Firstpage
314
Abstract
The Miller effect is used to design resistively variable capacitors. The effect is formulated in voltage- and current-mode versions and, in both cases, implementation based on operational amplifiers and, eventually, current mirrors are suggested. Their dynamic range and frequency response are analyzed and compared introducing limitations of the active devices. The current-mode implementation seems to offer advantages in both parameters
Keywords
SPICE; active networks; circuit CAD; equivalent circuits; frequency response; Miller effect; SPICE simulation; active circuits; continuously tunable capacitors; current mirrors; current-mode; dynamic range; frequency response; operational amplifiers; resistively variable capacitors; voltage-mode; Active circuits; Capacitance; Capacitors; Circuit simulation; Dynamic range; Frequency response; Impedance; Mirrors; Voltage; Voltage-controlled oscillators;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 1992., Proceedings of the 35th Midwest Symposium on
Conference_Location
Washington, DC
Print_ISBN
0-7803-0510-8
Type
conf
DOI
10.1109/MWSCAS.1992.271297
Filename
271297
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