Autors: Radev, N., Mastorakis, N., Ivanov, K., Mladenov, V. M.
Title: Reduction of the gain errors in multi-input Nagaraj-89 very large time constant integrators
Keywords: Filters, Operational Amplifiers, Switched-capacitor integra

Abstract: The multi-input very large time (VLT) constant switched-capacitor (SC) integrators, connected in a feedback loop, are considered. The corresponding gain errors are minimized by modifying the values of the integrating capacitances and the capacitances in the inverting gain branches. Analytical expressions for the prewarped capacitance values are obtained. The effectiveness of this prewarping technique is demonstrated by designing a 60 Hz notch biquad. The minimized gain errors automatically reduce the notch frequency shift.

References

    Issue

    WSEAS Transactions on Electronics, vol. 2, issue 4, pp. 135-138, 2005, Greece, ISBN ISSN 11099445

    Вид: статия в списание, публикация в реферирано издание, индексирана в Scopus