OTRA-Based Multi-Function Inverse Filter Configuration

Singh, A. K.; Gupta, Ashish; Senani, Raj

doi:10.15598/aeee.v15i5.2572

Cited by 21 publications

(37 citation statements)

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“…It can be easily verified that Equations (29) and (32) reduces to Equations (19) and (26), as expected, for ideal OTRA when α ≈ 1 and RX≈ 0.…”

Section: Simulation and Experimental Resultssupporting

confidence: 77%

“…Recently, an active current-mode device, called an operational transresistance amplifier (OTRA), has come to limelight with the introduction of several high performances CMOS OTRA realizations. Several waveform generators using an operational transresistance amplifier (OTRA) were reported earlier in the literature [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42]. Square-waveform generator using single OTRA and a few passive components was proposed in [28].…”

Section: Introductionmentioning

confidence: 99%

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Electronic Tuning Square-Wave Generators with Improved Linearity Using Operational Transresistance Amplifier

Pittala¹,

Srinivasulu

2020

JLPEA

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Two new electronic tuning current-mode square-wave generators are introduced in the ensuing paper. In the first proposed square-wave generator circuit, one Operational Trans-resistance Amplifier (OTRA) and two passive components are involved, along with two NMOS depletion mode transistors. This circuit generates a square-wave with almost equal and fixed duty cycles. The second proposed circuit is able to control both on-duty and off-duty cycles independently with the help of two passive components, two NMOS depletion mode transistors, and two diodes connected to the circuit. The frequency of the proposed circuits can be adjusted with the passive components connected to the circuit. Moreover, electronic tuning can also be achieved with the proposed circuits. The measured results that are included in the paper show the linear variation of a time period as compared with existing OTRA based square waveform generator. The performance of the proposed circuits is examined while using SPICE models. These circuits are built on a laboratory breadboard using commercially available Current Feedback Operational Amplifier (AD844 AN) and passive components are connected externally and tested for square waveform generation. The obtained results demonstrate good agreement with the theoretical values.

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“…It can be easily verified that Equations (29) and (32) reduces to Equations (19) and (26), as expected, for ideal OTRA when α ≈ 1 and RX≈ 0.…”

Section: Simulation and Experimental Resultssupporting

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Electronic Tuning Square-Wave Generators with Improved Linearity Using Operational Transresistance Amplifier

Pittala¹,

Srinivasulu

2020

JLPEA

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“…It required two to four Voltage Differencing Transconductance Amplifier (VDTA) and two capacitors for the realization of ILPF, IHPF, IBPF, & IBRF filter functions. Also, there are some topologies present in literature [18,19,[22][23][24][25] to implement an inverse filter using two ABBs. Inverse filter functions of ILPF, IHPF, and IBPF were implemented by [18,[22][23][24], while topologies of [19,25] provide an additional filter function of IBRF.…”

Section: Introductionmentioning

confidence: 99%

“…Inverse filter functions of ILPF, IHPF, and IBPF were implemented by [18,[22][23][24], while topologies of [19,25] provide an additional filter function of IBRF. The topologies present in [9,14,16,21,24,25] possess electronic tunability. For better-integrated circuit design, the circuit must have a fixed topology [5-7, 10-12, 16-18, 20, 22, 24-28] to implement the different inverse filter functions.…”

Section: Introductionmentioning

confidence: 99%

“…• Some topologies are resistor-less [21,25] • The filter parameters are electronically tunable [9,14,16,21,24,25] • [5-7, 10, 11, 14, 20] provides single response at a time while [8, 9, 13-15, 19, 21, 23] provide multiple responses by altering the topology • [17,25] provides universal inverse filter without altering the topology So it is concluded from the literature survey, as detailed above, that no universal inverse filters have been proposed using the FTFNTA as an active element and there is only one topology was proposed for designing of both filter and inverse filter using the same circuit so far. Therefore, the main objective of the manuscript is to propose a set of topologies which can produce a universal inverse filter i.e.…”

Section: Introductionmentioning

confidence: 99%

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Realization of Filter/Inverse Filter Topologies using single FTFNTA

Singh

Prasad

2021

Preprint

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In this manuscript, two different topologies are presented for the realization of a conventional filter/inverse filter using the Four Terminal Floating Nullor Transconductance Amplifier (FTFNTA). The first topology can synthesize the inverse low-pass (ILP), inverse high-pass (IHP), and inverse band-pass (IBP) filter with applicable impedance choices. Subsequently, another topology that can synthesize conventional low-pass (LP), and band-pass (BP) active filter, as well as inverse high-pass (IHP), and inverse band-pass (IBP) filter from the same circuit topology with a viable solution of impedances as resistor/capacitor. To verify the workability of both topologies, SPICE simulation is performed using 180nm CMOS TSMC technology.

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First‐order inverse filters: Implementations using a single voltage conveyor and potential applications

Psychalinos

Mınaeı

Yeşil

2022

Circuit Theory & Apps

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First-order low pass and high pass inverse filter topologies, offering simplicity and independent adjustment of the gain and the characteristic frequency, are introduced in this work. These features are offered thanks to the terminals properties of the second generation voltage conveyor. In addition, possible applications of these types of filters are exploited. The behavior of a control system, where these filters are incorporated, is evaluated in both frequency and time-domain using the Cadence IC design suite.

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OTRA-Based Multi-Function Inverse Filter Configuration

Cited by 21 publications

References 0 publications

Electronic Tuning Square-Wave Generators with Improved Linearity Using Operational Transresistance Amplifier

Electronic Tuning Square-Wave Generators with Improved Linearity Using Operational Transresistance Amplifier

Realization of Filter/Inverse Filter Topologies using single FTFNTA

First‐order inverse filters: Implementations using a single voltage conveyor and potential applications

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