CCII-based voltage-mode and current-mode high-order filters with gains and grounded passive elements only

Yucehan, Tolga; Yüce, Erkan

doi:10.1016/j.aeue.2022.154346

Cited by 6 publications

(16 citation statements)

References 43 publications

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“…In (7), the high frequency gain and low frequency gain of the LPN are g m3 R 5 and g m3 R 5 (1 +R/R 5 ), respectively. Letting R 5 ≫ R (i.e.…”

Section: Circuit Design Of Two Proposed Electronically Adjustable Vm ...mentioning

confidence: 99%

“…The LPN has a notch zero frequency ω n relative to the pole angular frequency ω o . In the case of ω n > ω o in (7), the magnitude response of the LPN can be obtained. According to (7), ω o and ω n are given by 12)…”

Section: Circuit Design Of Two Proposed Electronically Adjustable Vm ...mentioning

confidence: 99%

“…ABBs have been published in the open technical literature [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17], [18], [19], [20], [21], [22]. VM multifunction biquadratic filters composed of various highperformance ABBs, such as voltage differencing buffered amplifier (VDBA) [23], [24], [25], [26], current feedback amplifier (CFA) [27], [28], [29], [30], [31], [32], differential difference transconductance amplifier (DDTA) [33], voltage differencing differential difference amplifier (VDDDA) [34], voltage differencing differential input buffered amplifier (VD-DIBA) [35], [36], operational transconductance amplifier (OTA) [37], [38], [39], and LT1228 [40], [41], [42], [43], [44], can be found in the open literature and play an important role in various electronic systems.…”

Section: Introductionmentioning

confidence: 99%

“…Designing a specific circuit using commercially available ABBs is an attractive method to help verify the accuracy and performance of the designed circuit. Consequently, many filter and oscillator implementations have been designed in the open literature and demonstrated using commercially available integrated circuits (ICs), such as the AD844 [2], [6], [7], [8], [9], [12], [27], [28], [29], [30], [31], [32], and [60], LF356 [26], AD830 [34] and [36], AD8130 [35], MAX435 [61] and [62], OPA860 [63], [64] and [65], and CA3080 [26], [66], [67], and [68], LM13600 [69], [70], [71], and LM13700 [16], [33], [34], and [72], and LT1228 [10], [19], [37], [38], [39], [40], [41], [42], [43], [73], [74], [75], [76], and…”

Section: Introductionmentioning

confidence: 99%

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Two New and Improved Electronically Adjustable Voltage-Mode Multifunction Biquadratic Filters With Independent Control of Band-Pass, High-Pass, and Low-Pass/Regular Notch Filter Gains

et al. 2023

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In this study, two new and improved electronically adjustable voltage-mode (VM) biquadratic filters using three off-the-shelf LT1228 integrated circuits (ICs), two grounded capacitors (GCs), and six resistors are proposed for independent control of the band-pass (BP), high-pass (HP), and low-pass/regular notch (LPN/RN) filter gains. Each proposed electronically adjustable VM multifunction biquadratic filter has one input and six output voltages, enabling simultaneous realization of one low-pass (LP), two BP, two HP, and one LPN/RN filtering responses from the same configuration. Each filter parameter, namely the pole angular frequency (ω o ) and quality factor (Q), can be electronically controlled and orthogonally adjusted by the corresponding LT1228 bias current I B . In special cases, the parameters of ω o and Q can be electronically controlled and independently adjusted. Each electronically adjustable VM multifunction biquadratic filter has one high input impedance and three low output impedances for independent control of BP, HP, and LPN/RN filter gains. Due to its one high input impedance and three low output impedances, each proposed filter is suitable for cascaded VM circuits without external voltage buffers. Pspice simulations are used to verify the theoretical structure analysis of each proposed LT1228-based electronically adjustable VM multifunction biquadratic filter. Furthermore, experimental tests are performed using three off-theshelf LT1228 ICs, and several passive components to verify and evaluate the performance of each proposed LT1228-based biquadratic filter.INDEX TERMS LT1228, analog circuit design, integrated circuits, voltage-mode, filters.

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“…In (7), the high frequency gain and low frequency gain of the LPN are g m3 R 5 and g m3 R 5 (1 +R/R 5 ), respectively. Letting R 5 ≫ R (i.e.…”

Section: Circuit Design Of Two Proposed Electronically Adjustable Vm ...mentioning

confidence: 99%

Section: Circuit Design Of Two Proposed Electronically Adjustable Vm ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Two New and Improved Electronically Adjustable Voltage-Mode Multifunction Biquadratic Filters With Independent Control of Band-Pass, High-Pass, and Low-Pass/Regular Notch Filter Gains

et al. 2023

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show abstract

“…The choice of active building blocks (ABBs) plays an important role in analog filter design because one expects VM second-order multifunction filters with high input and low output impedances to allow cascading of the VM circuits. Therefore, many circuit architecture studies use different high-performance ABBs to implement different kinds of filters and oscillators [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ]. In [ 22 ], a high-input impedance VM second-order filter based on four second-generation current conveyor (CCII) active components and six passive components is proposed.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of High-Input Impedance Electronically Tunable Voltage-Mode Second-Order Low-Pass, Band-Pass, and High-Pass Filters Based on LT1228 Integrated Circuits

Chen¹,

Chen²,

Chang³

2022

Sensors

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This paper introduces two new high-input impedance electronically tunable voltage-mode (VM) multifunction second-order architectures with band-pass (BP), low-pass (LP), and high-pass (HP) filters. Both proposed architectures have one input and five outputs, implemented employing three commercial LT1228 integrated circuits (ICs), two grounded capacitors, and five resistors. Both proposed architectures also feature one high-impedance input port and three low-impedance output ports for easy connection to other VM configurations without the need for VM buffers. The two proposed VM LT1228-based second-order multifunction filters simultaneously provide BP, LP, and HP filter transfer functions at Vo1, Vo2, and Vo3 output terminals. The pole angular frequencies and the quality factors of the two proposed VM LT1228-based second-order multifunction filters can be electronically and orthogonally adjusted by the bias currents from their corresponding commercial LT1228 ICs, and can be independently adjusted in special cases. In addition, both proposed VM LT1228-based second-order multifunction filters have two independent gain-controlled BP and LP filter transfer functions at Vo4 and Vo5 output terminals, respectively. Based on the three commercial LT1228 ICs and several passive components, simulations and experimental measurements are provided to verify the theoretical predictions and demonstrate the performance of the two proposed high-input impedance electronically tunable VM LT1228-based second-order multifunction filters. The measured input 1-dB power gain compression point (P1dB), third-order IMD (IMD3), third-order intercept (TOI) point, and spurious-free dynamic range (SFDR) of the first proposed filter were −7.1 dBm, −48.84 dBc, 4.133 dBm, and 45.02 dBc, respectively. The measured input P1dB, IMD3, TOI, and SFDR of the second proposed filter were −7 dBm, −49.65 dBc, 4.316 dBm, and 45.88 dBc, respectively. Both proposed filters use a topology synthesis method based on the VM second-order non-inverting/inverting HP filter transfer functions to generate the BP, LP and HP filter transfer functions simultaneously, making them suitable for applications in three-way crossover networks.

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A single CCII‐based high‐precision voltage‐mode full‐wave rectifier suitable for low‐level signals

Yucehan

Yüce

Mınaeı

2023

Circuit Theory & Apps

Self Cite

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SummaryA new second‐generation current conveyor‐based full‐wave rectifier (FWR) is proposed in this work. The proposed voltage‐mode FWR comprises a single active building block, four diodes, and three grounded resistors without needing any passive element matching problems. It does not suffer from any bias voltages and/or currents; therefore, it does not need extra circuitry. It can simultaneously provide positive and negative rectifications; thus, it is flexible. The proposed FWR has high input impedance; accordingly, it can be easily cascadable. Several simulations via the SPICE program and some experiments by using the AD844s are achieved. 0.18‐μm TSMC CMOS technology parameters are used in the simulations.

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CCII-based voltage-mode and current-mode high-order filters with gains and grounded passive elements only

Cited by 6 publications

References 43 publications

Two New and Improved Electronically Adjustable Voltage-Mode Multifunction Biquadratic Filters With Independent Control of Band-Pass, High-Pass, and Low-Pass/Regular Notch Filter Gains

Two New and Improved Electronically Adjustable Voltage-Mode Multifunction Biquadratic Filters With Independent Control of Band-Pass, High-Pass, and Low-Pass/Regular Notch Filter Gains

Synthesis of High-Input Impedance Electronically Tunable Voltage-Mode Second-Order Low-Pass, Band-Pass, and High-Pass Filters Based on LT1228 Integrated Circuits

A single CCII‐based high‐precision voltage‐mode full‐wave rectifier suitable for low‐level signals

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