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Design Of An Enhanced Translinear Variable Floating Resistor And Its Application In A VGA

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Design Of An Enhanced Translinear Variable Floating Resistor And Its Application In A VGA

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dc.contributor.author Jagannathan, Nithya en_US
dc.date.accessioned 2008-08-08T02:31:00Z
dc.date.available 2008-08-08T02:31:00Z
dc.date.issued 2008-08-08T02:31:00Z
dc.date.submitted May 2006 en_US
dc.identifier.other DISS-1371 en_US
dc.identifier.uri http://hdl.handle.net/10106/894
dc.description.abstract An improved current controlled floating resistor is designed based on translinear loops for application in a Variable Gain Amplifier (VGA). This work compares the use of two different devices and evaluates the difference based on the model parameters and circuit performance. The different architectures employed clearly demarcate the performance variations. The translinear variable resistor exhibits a dynamic range greater than 60 mV. The resistance value lies in the range of 3 KΩ to few Ohms. A Current Feedback Operational Amplifier (CFOA) is also designed to have an f -3dB of 250 MHz. The CFOA together with the variable resistor in a difference amplifier configuration constitutes a VGA with a variable voltage gain in the range of 1 to 10. The circuit's intended applications involve front-end of communication systems, temperature sensors, filters etc. The circuit has been implemented using National's VIP10 process, which caters to the high speed bipolar technology. Measurement results obtained are a good reflection of the various factors that affect the performance and show a good amount of compliance to that of the simulated results. en_US
dc.description.sponsorship Carter, Ronald en_US
dc.language.iso EN en_US
dc.publisher Electrical Engineering en_US
dc.title Design Of An Enhanced Translinear Variable Floating Resistor And Its Application In A VGA en_US
dc.type M.S. en_US
dc.contributor.committeeChair Carter, Ronald en_US
dc.degree.department Electrical Engineering en_US
dc.degree.discipline Electrical Engineering en_US
dc.degree.grantor University of Texas at Arlington en_US
dc.degree.level masters en_US
dc.degree.name M.S. en_US
dc.identifier.externalLink https://www.uta.edu/ra/real/editprofile.php?onlyview=1&pid=226
dc.identifier.externalLinkDescription Link to Research Profiles

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