Design and analysis of MISO bi-quad active filter

Kumar, Vikash; Mehra, Rishab; Islam, Aminul

doi:10.1080/00207217.2018.1525769

Cited by 5 publications

(2 citation statements)

References 23 publications

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“…The authors of [21] provide guidelines to evaluate sensitivities in VLSI systems. This can be done replacing the transfer function H(s) by its polynomials in the numerator N(s) and denominator D(s), leading to the expression given in Equation (16), from which after regrouping similar terms one gets to the expression in (17), which is suitable for VLSI systems.…”

Section: Sensitivity Analysis Performed In Ni Multisimmentioning

confidence: 99%

“…Fortunately, if one designs an opamp-RC filter with stable and high Q factor, such a topology can be transformed to a Gm-C one that can work in voltage-mode or current-mode, as shown in the work by the authors of [10]. For instance, some recent efforts on designing BPF responses work in current-mode, like in works by the authors of [11,12]; in voltage-mode, like in works by the authors of [13,14]; or apply modern active devices, like in works by the authors of [15][16][17]. Also, other efforts are oriented to provide reconfigurability and tune-ability at the same time and designing fractional-order circuits as in the work by the authors of [18].…”

Section: Introductionmentioning

confidence: 99%

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Enhancing Q-Factor in a Biquadratic Bandpass Filter Implemented with Opamps

et al. 2019

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Active filter design is a mature topic that provides good solutions that can be implemented using discrete devices or integrated circuit technology. For instance, when the filter topologies are implemented using commercially available operational amplifiers (opamps), one can explore varying circuit parameters to tune the central frequency or enhance the quality (Q) factor. We show the addition of a feedback loop in the signal flow graph of a biquadratic filter topology, which enhances Q and highlights that a sensitivity analysis can be performed to identify which circuit elements influence central frequency, Q, or both. In this manner, we show the opamp-based implementation of a biquadratic bandpass filter, in which Q is enhanced through performing a sensitivity analysis for each circuit element. Equations for the central frequency and Q are provided to observe that there is not a direct parameter that enhances them, but we show that from sensitivity analysis one can identify the circuit elements that better enhance Q-factor.

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Section: Sensitivity Analysis Performed In Ni Multisimmentioning

confidence: 99%