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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

A universal CMOS current-mode operational amplifier

Botelho, Cindy 19 December 1990 (has links)
It has become customary in electrical engineering to think of signal processing in terms of voltage variables to the exclusion of current variables. This tendency has resulted in voltage signal processing circuits such as voltage-controlled voltage sources (VCVS) and voltage-mode operational amplifiers. However, the VCVS operational amplifier has several limitations which prevent high performance operation. One of these limitations is that the product of the closed loop -3dB bandwidth and the closed loop voltage gain is approximately a constant. Thus, for a typical internally compensated operational amplifier the closed loop -3dB bandwidth decreases as the closed loop voltage gain increases. By taking advantage of a current-controlled current source (CCCS) to form a current-mode operational amplifier, this limitation can be overcome. / Graduation date: 1991

Limitation of Q-factor of second-order active filter using finite gainoperational amplifiers

Chiu, Pui-leung, 趙佩亮 January 1975 (has links)
published_or_final_version / Electrical Engineering / Master / Master of Philosophy

Design of high-performance operational amplifiers using an embedded compensation technique

Ziazadeh, Ramsin M. 04 December 1997 (has links)
Graduation date: 1998

Opamp characterization techniques

Ramamurthy, Karthik 22 June 1993 (has links)
Standard methodologies exist for testing and characterizing digital circuits but the same cannot be said of analog circuits. Though much theoretical work has been done to model the linear and nonlinear aspects of analog circuits, a firm practical background for the design of testable analog cells has yet to be set. The industry largely looks for solutions wherein some form of built in self-test (BIST) can be incorporated into the analog circuits to make the testing at the manufacturing level easy and accurate. Since the testers in the industry are generally digital, test circuits that use logic levels at the output to make measurements are attractive. This thesis examines the design of such test circuits for one specific analog circuit, the opamp. Test circuits to measure the gain, gain-bandwidth product, phase response and the slew rate of the opamp have been designed and experimental results are presented. The main advantages of these tests are that they are simple, fast, accurate and easy to incorporate in an integrated circuit. / Graduation date: 1994

Design of a signal generator using current feedback operational amplifiers

Haque, Akm Sydul. January 2008 (has links)
Thesis (Ph.D.) -- University of Texas at Arlington, 2008.

Limitation of Q-factor of second-order active filter using finite gain operational amplifiers.

Chiu, Pui-leung, January 1975 (has links)
Thesis--M. Phil., University of Hong Kong.

Low-power techniques for high-performance pipelined analog to digital converter

Lee, Byung-geun, January 1900 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2007. / Vita. Includes bibliographical references and index.

Correlated level shifting as a power-saving method to reduce the effects of finite DC gain and signal swing in opamps /

Gregoire, B. Robert. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 2009. / Printout. Includes bibliographical references (leaves 80-86). Also available on the World Wide Web.

A multi-level simulation technique with emphasis on behavioral simulation and modeling

Yang, Jeenmo 12 1900 (has links)
No description available.


Grantham, Clayton Bruce, 1955- January 1987 (has links)
This work contains the analysis and redesign of a translinear circuit. This circuit appeared in the article by Robert Blauschild. The Blauschild circuit was analyzed on H-SPICE, a VAX computer circuit analysis program, with Burr-Brown Integrated Circuit Process 30 models. Circuit improvement to input voltage to current converter stage and circuit simplification of the output stage were implemented and simulated in the redesign. The results of the two simulations were compared, which showed that the improvements were valid and useful. Going through this redesign cycle of circuit analysis, computer simulation and bread-boarding served as an actual design engineering application with a real problem, solution, and result scenarios.

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