Graduate Thesis Or Dissertation

 

A universal CMOS current-mode operational amplifier Public Deposited

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/9w0326292

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  • 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.
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