Systematic Design of Current-Mode Multiple-Loop Feedback Filters Based on a Single CDCTA

Zhu, Baihui; Wang, Chunhua; Sun, Yichuang; Li, Jun

doi:10.1080/03772063.2016.1274239

Cited by 4 publications

(9 citation statements)

References 15 publications

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“…The deviation of theoretical and simulated value was 12.85%. This stems from the non-ideal properties of the CDCTA as analysis in Equation (11). The Total Harmonic Distortions (THD) for the sinusoidal output current I o1 and I o2 were 0.519 and 0.959%, respectively.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…Here, ε p , ε n and ε i are current and voltage tracking error. Taking into account these parameters, the characteristic equation of the proposed oscillator was presented as below: (11) Considering Equation (10), the frequency of oscillation can be given by [Equation (12)]: (12) Considering Equation (10), the condition of oscillation could be presented with the Equation (13).…”

Section: Non-ideal Analysismentioning

confidence: 99%

“…The current-mode signal processing circuits using CDCTA have been found in the literature. The current-mode n th -order filter is proposed in [10], [11]. The CDCTA based multiphase sinusoidal oscillators are introduced in [12]- [15].…”

Section: Introductionmentioning

confidence: 99%

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Single CDCTA Based Electronically Adjustable Current-mode Quadrature Sinusoidal Oscillator

Siriphot¹,

Pookrongtong²,

Lumchanao³

2018

j.ijast

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The realization of the current-mode quadrature sinusoidal oscillator was presented in this paper. In this design, a single active building block, named Current Differencing Cascaded Transconductance Amplifier (CDCTA) was used with grounded resistor and two grounded capacitors. The proposed circuit was a simple structure which was attractive for integrated circuit implementation. The proposed oscillator could generate two sinusoidal signals with 90°degree phase difference. The output current nodes were high impedance which was ideal for cascading in the current-mode circuit without the requirement of the current buffers. Moreover, the control of the Frequency of Oscillation (FO) and the Condition of Oscillation (CO) were orthogonally and electronically via the DC bias current of CDCTA. The workability of the proposed sinusoidal oscillator was verified with PSpice in which simulation results agree well with theoretical expectations.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Non-ideal Analysismentioning

confidence: 99%

See 1 more Smart Citation

Single CDCTA Based Electronically Adjustable Current-mode Quadrature Sinusoidal Oscillator

Siriphot¹,

Pookrongtong²,

Lumchanao³

2018

j.ijast

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show abstract

“…10 In this respect, there are some filtering architectures in CM that are reported in previous studies. [10][11][12][13][14][15][16][17][18][19][20][21][22][23] There are some published works taking advantage of active elements with external passive components in previous studies. [10][11][12][13][14][15][16][17][18][19][20][21][22][23] They suffer from large chip area, power consumption, and complexity problems.…”

Section: Introductionmentioning

confidence: 99%

“…[10][11][12][13][14][15][16][17][18][19][20][21][22][23] There are some published works taking advantage of active elements with external passive components in previous studies. [10][11][12][13][14][15][16][17][18][19][20][21][22][23] They suffer from large chip area, power consumption, and complexity problems. In this respect, center frequency of the filters employing active elements goes up at the expense of huge power dissipation.…”

Section: Introductionmentioning

confidence: 99%

A current‐mode MOSFET‐C analog filter for the high‐frequency band applications

Ozenli

Yeşil

Kuntman

2021

Circuit Theory & Apps

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Summary In this work, a novel current‐mode filter is presented including a PMOS grounded capacitor and a metal insulator metal structure (MIM‐cap). Proposed filter's cut‐off frequency can be easily adjusted from 10 up to 35 MHz. The wide tuning range of the proposed filter is designed to cover the need of baseband filter in the high‐frequency band and wireless applications such as CDMA, IEEE802.11a/g, IEEE 802.11b, and IEEE 802.11n. In addition, the proposed filter is designed by using a design methodology employing polynomial regressive models of small signal parameters of transistors to provide design accuracy as high as possible. Designed filter structure has layout with 52.1 μm × 62.6 μm chip area, and post‐layout simulations are given extensively to prove performance of the filter. Furthermore, 1‐dB compression point and IIP3 analyses are highlighted to observe linearity of band‐pass output of the filter structure. Also, input‐referred noise characteristics of the filter outputs are investigated to overcome thermal noise effects worsening the performance for a wide range of operating frequency interval. Provided results show that the proposed filter scheme brings a promising opportunity to designers for the high‐frequency region operations.

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An electronically tunable active-C based analog baseband filter for multi-standard applications

Alaybeyoglu

Ozenli

Kuntman

2022

Analog Integr Circ Sig Process

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Systematic Design of Current-Mode Multiple-Loop Feedback Filters Based on a Single CDCTA

Cited by 4 publications

References 15 publications

Single CDCTA Based Electronically Adjustable Current-mode Quadrature Sinusoidal Oscillator

Single CDCTA Based Electronically Adjustable Current-mode Quadrature Sinusoidal Oscillator

A current‐mode MOSFET‐C analog filter for the high‐frequency band applications

An electronically tunable active-C based analog baseband filter for multi-standard applications

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