Efficient implementation of tunable ladder filters using multi-output current controlled conveyors

Jiraseree-amornkun, Amorn; Surakampontorn, W.

doi:10.1016/j.aeue.2007.01.005

Cited by 17 publications

(10 citation statements)

References 8 publications

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“…Recently, current-mode circuits have more advantages such as high speed, wide bandwidth, large dynamic range, low nonlinear distortion, low power supply compared with traditional voltage-mode circuits, so they have been paid more and more attention by domestic and foreign scholars [1][2][3][4][5][6]. Current-mode continuous-time filters have been a most conspicuous research direction.…”

Section: Current-mode;mentioning

confidence: 99%

Realization of current-mode general nth-order filter based on current mirrors

Feng

Wang

Zang

et al. 2011

2011 3rd International Conference on Advanced Computer Control

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A current-mode general nth-order filter configuration using current mirrors is proposed in the paper. The filter uses n basic current mirrors and n unloss integrators, and can realize low pass, high pass, band pass, band reject and all pass filtering responses by changing input signal forms. As a design example, a fourth-order filter related CMOS circuit is presented. The computer simulation of transistor is carried out and PSPICE simulation results show that the proposed circuit is valid. The circuit has several advantages, such as low voltage, low power dissipation, wide frequency band and very low filter sensitivities, which will has a broad prospect in application.

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Section: Current-mode;mentioning

confidence: 99%

Realization of current-mode general nth-order filter based on current mirrors

Feng

Wang

Zang

et al. 2011

2011 3rd International Conference on Advanced Computer Control

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“…In general, in the open literature this design technique has been firstly applied using operational amplifiers (OAs) [4], however, due to smaller dynamic range, narrow bandwidth, and higher power consumption of OAs, also on various recently introduced non-conventional high performance ABBs. In open literature various third-order low-pass filter (LPF) realizations exist [6]- [13], however this paper is strictly focused on active only grounded-C third-order voltage-mode (VM) elliptic LPF design [10]- [13]. Therefore, for fair comparison of here presented solution the operational transconductance amplifier (OTA) [10] and secondgeneration current conveyors (CCIIs)-based solutions are relevant [11], [12].…”

Section: Introductionmentioning

confidence: 99%

Voltage-Mode CFTA-C Third-Order Elliptic Low-Pass Filter Design and Optimization Using Signal Flow Graph Approach

Herencsár

Koton

Horng

et al. 2015

ElAEE

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In this work, two active only grounded-C equivalents of third-order voltage-mode (VM) elliptic low-pass (LP) LC ladder prototype are proposed. As active building blocks (ABBs) the recently introduced current follower transconductance amplifier (CFTA) were used. The first active only grounded-C LP filter employing eight CFTAs was proposed by interconnecting CFTA-based active equivalent sub-blocks of passive components, where one of the lowimpedance input terminals is not used. Since such feature may cause some noise injection into the proposed circuit, the proposed filter was optimized using Mason-Coates' signal flow graph approach. In several steps the number of ABBs was reduced by two and the unused input terminal was eliminated. The performance of the novel and optimized active only grounded-C third-order VM elliptic LP filter was tested experimentally using the readily available UCC-N1B integrated circuit.

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“…In particular, the positive-type CCII (CCII+) can be evolved to design the current feedback opamp (CFOA) [20]. Furthermore, CCs are suitable to design active filters [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39], simulated inductances [40][41][42][43], gyrators [44], and impedances [45,46]. Besides, their parasitic effects must be taken into account to improve circuit performances [47].…”

Section: Introductionmentioning

confidence: 99%

Symbolic analysis of (MO)(I)CCI(II)(III)‐based analog circuits

Tlelo‐Cuautle

Sánchez–López

Moro-Frías

2010

Circuit Theory & Apps

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SUMMARYNew nullor-based models are introduced to describe the behavior of the first generation current conveyor (CCI), second generation current conveyor (CCII), third generation current conveyor (CCIII), their inverting equivalents (ICCI(II)(III)), and/or their multiple output topologies (MO(I)CCI(II)(III)). These nullor equivalents include only grounded resistors to improve the formulation of equations in symbolic nodal analysis. In this manner, it is highlighted the usefulness of the proposed models to calculate analytical expressions in MO(I)CCI(II)(III)-based analog circuits.

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Efficient implementation of tunable ladder filters using multi-output current controlled conveyors

Cited by 17 publications

References 8 publications

Realization of current-mode general nth-order filter based on current mirrors

Realization of current-mode general nth-order filter based on current mirrors

Voltage-Mode CFTA-C Third-Order Elliptic Low-Pass Filter Design and Optimization Using Signal Flow Graph Approach

Symbolic analysis of (MO)(I)CCI(II)(III)‐based analog circuits

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