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A Novel Phase Compensation Technique for Integrated Feedback Integrators
Fujihiko MATSUMOTO Yasuaki NOGUCHI
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/06/25
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Section of Papers Selected from ITC-CSCC'97)
Category: Analog Signal Processing
analog integrated circuits, integrators, excess phase shift, phase compensation,
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A novel phase compensation technique for feedback integrators is proposed. By the technique, a zero is obtained without employing extra capacitors. A design of an integrator for IC using the proposed technique is presented. The frequency of the parasitic pole is proportional to the unity gain frequency. It is shown that excess-phase cancellation is obtained at any unity gain frequency.