Journal ArticleDOI
Design of a third-order single amplifier filter
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TLDR
In this paper, the synthesis of a third-order low-pass filter with a finite transmission zero was studied, using a unity gain positive feedback amplifier, with balanced twin-T RC networks.Abstract:
General design formulae are derived for the synthesis of a third-order low-pass filter with a finite transmission zero. The design procedure uses a unity gain positive feedback amplifier, with balanced twin-T RC networks. A design example is given for a fifth-order elliptic filter, whose performance is compared to the ideal computed response.read more
Citations
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Journal ArticleDOI
Compensation of some operational-amplifier based RC-active networks
TL;DR: In this paper, means of compensating for the finite gain bandwidth of operational amplifiers, when used in voltage-controlled voltage source and inverting integrator blocks, are described and are shown to virtually eliminate excess phase shifts over a prescribed frequency range.
Journal ArticleDOI
Classification and generation of active compensated non‐inverting VCVS building blocks
TL;DR: In this article, the phase compensation conditions for non-inverting voltage controlled voltage source (VCVS) structures employing two operational amplifiers (op-amps) were compared. And the phase error, magnitude error, and realizable bandwidth were given.
Journal ArticleDOI
Design of low-pass maximally flat RC-active filters with multiple real pole: The MURROMAF polynomials
Mario Biey,Amedeo Premoli +1 more
TL;DR: In this paper, a new class of low-pass all-pole transfer functions is defined, with maximally flat behavior at the origin, and the main feature of this class is the introduction of a multiple real pole, in order to realize RC-active filters by cascading third-order sections and, if necessary, second-order segments.
Journal ArticleDOI
Design of sharp cutoff low-pass maximally flat RC-active filters by cascading third-order blocks
TL;DR: In this article, pairs of coincident j-axis zeros are added to the multiple real root maximally flat (MURROMAF) approximation function for designing sharp cutoff low-pass RC active filters.
Journal ArticleDOI
Multiple real‐pole equal‐ripple rational (MRPER) approximation for lowpass RC‐active filters
Mario Biey,Amedeo Premoli +1 more
TL;DR: In this article, a new class of lowpass rational transfer functions with equal-ripple behavior both in the passband and in the stopband is defined, called multiple real-pole equalripple rational (MRPER).
References
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Journal ArticleDOI
Gain-sensitivity product-a figure of merit for hybrid-integrated filters using single operational amplifiers
TL;DR: Q-stability measurements of hybrid- integrated positive feedback, or Sallen-Key-type circuits, which were realized with tantalum thin-film resistors and capacitors combined with beam-leaded operational amplifier chips agree very accurately with the predictions derived from gain-sensitivity calculations.
Journal ArticleDOI
Generation and classification of single amplifier filters
TL;DR: In this article, a unified approach for generating configurations for circuits containing one operational amplifier together with RC elements and capable of realizing a general second-order voltage transfer function is presented, which leads to various single amplifier biquads with the known circuits, as well as some new ones obtained as special cases.
Journal ArticleDOI
Equal-valued-capacitor active-RC-network realisation of a 3rd-order lowpass Butterworth characteristic
TL;DR: In this article, the authors describe an active RC network which realises a 3rd-order low-pass Butterworth characteristic and requires one active element and has the practical advantage that all capacitors have the same value.
Journal ArticleDOI
A general approach to twin-t design and its application to hybrid integrated linear active networks
TL;DR: This paper approaches twin-T design with a view to controlling the sensitivity of the transmission zero with respect to component variations, according to criteria that are of particular interest in the design of hybrid integrated linear active networks.
Journal ArticleDOI
Computer techniques for the frequency analysis of linear electrical networks
J.F. Pinel,M.L. Blostein +1 more
TL;DR: A detailed exposition is presented of a computer program based on Branin's "link-at-a-time" algorithm, which is adapted for frequency domain analysis and extended to networks containing nonreciprocal elements by exploiting the close relationship between Branin'm work and the reinforcement technique of matrix inversion.