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![Johannes Wagner Headshot](https://confcats-catavault.s3.amazonaws.com/CATAVault/ieeecass/master/files/styles/cc_user_photo/s3/user-pictures/80991.jpg?h=7d88842e&itok=ggQnlrmx)
- Affiliation
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AffiliationUniversität Ulm
- Country
In this paper an analysis of the influence of finite GBW in positive-feedback single-OpAmp resonator based CT BPSDMs is presented. The resonators of BPSDMs are often realized by LC tanks, requiring large area for the inductor. Positive-feedback single-OpAmp resonators are trying to solve this drawback, as no inductor is required. However, a large GBW of the OpAmp is necessary to achieve a sufficiently large quality factor. In this work, a system-level model accounting for finite GBW and DC gain for this type of resonator is presented. It allows the full compensation of finite GBW by a newly introduced system-level parameter. By implementing this model in a design environment for BPSDMs, a straightforward and automated design process in the CT domain can be carried out including loopfilter synthesis and STF engineering.