A New Extremely Low Power Temperature Insensitive Electronically Tunable VCII-Based Grounded Capacitance Multiplier

Stornelli, Vincenzo; Safari, Leila; Barile, Gianluca; Ferri, Giuseppe

doi:10.1109/tcsii.2020.3005524

Cited by 35 publications

(27 citation statements)

References 21 publications

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“…Other requirements are high current drive capability in Y and X ports, low THD for the current transferred from Y to X ports, and high voltage swing at the Z port. In all applications reported in [16][17][18][19][20][21][22][23][24][25][26], both CB and VB sections are not included in the negative feedback loop, and as a result, overall performance is determined by VCII linearity and port impedances. In this Section, design considerations of a high drive class AB VCII under low supply voltage are discussed.…”

Section: Class Ab Vcii Realizationmentioning

confidence: 99%

“…In [17], a comparison between OA-based circuits and VCII-based circuits was drawn, showing that the problem of the cross-talk effect among inputs in a conventional OA-based non-inverting summing amplifier can be cancelled out using VCII. Literature survey shows the possibility of realizing various VCIIbased analog circuits such as filters, integrators, differentiators, rectifiers, and impedance simulators [16][17][18][19][20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

“…As VCII design is a new research area, the VCII implementations reported up to this point lack the maximum efficiency. Analyzing the previously reported VCII circuits, it appears that most of them [16][17][18][19][20][21][22][23][24] are designed in class A, which has limited current drive capability at the X port. Due to high power consumption and poor current drive capability of circuits including class A VCIIs, they are unsuitable for low power applications and off-chip loads [28], while the class AB VCII with high current drive capability finds wide application as an integrated circuit front-end block.…”

Section: Introductionmentioning

confidence: 99%

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Towards Realization of a Low-Voltage Class-AB VCII with High Current Drive Capability

et al. 2021

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In this paper, the implementation of a low-voltage class AB second generation voltage conveyor (VCII) with high current drive capability is presented. Simple realization and good overall performance are the main features of the proposed circuit. Proper solutions and techniques were used to achieve high signal swing and high linearity at Y, X and Z ports of VCII as well as low-voltage operation. The operation of the proposed VCII was verified through SPICE simulations based on TSMC 0.18 µm CMOS technology parameters and a supply voltage of ±0.9 V. The small signal impedance values were 973 Ω, 120 kΩ and 217 Ω at Y, X and Z ports, respectively. The maximum current at the X port was ±10 mA with maximum total harmonic distortion (THD) of 2.4% at a frequency of 1 MHz. Considering a bias current (IB) of 29 µA and output current at the X port (IX) of 10 mA, the current drive capability (IX/IB) of about 345 was achieved at the X port. The voltage swing at the Z port was (−0.4, 0.4) V. The THD value at the Z port for an input signal with 0.8 V peak-to-peak value and frequency of 1 MHz was 3.9%. The total power consumption was 0.393 µW.

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Section: Class Ab Vcii Realizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Towards Realization of a Low-Voltage Class-AB VCII with High Current Drive Capability

et al. 2021

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“…Recently, a new active building block called a second-generation voltage conveyor (VCII) [16][17][18][19][20], which is the dual circuit of well-known CCII, has been employed in the design of grounded impedance simulators [21,22]. Comparison shows that the simulated grounded capacitors and inductors using VCII exhibit many advantages, namely, simpler realizations, reduced error, reduced parasitics, lower power consumption, etc., over simulated grounded impedances utilized by other ABBs.…”

Section: Introductionmentioning

confidence: 99%

“…Comparison shows that the simulated grounded capacitors and inductors using VCII exhibit many advantages, namely, simpler realizations, reduced error, reduced parasitics, lower power consumption, etc., over simulated grounded impedances utilized by other ABBs. From the reported results in [21,22], the use of VCII in realizing impedance simulators looks quite promising. In this paper, we aim to employ VCII in realizing a floating inductor simulator.…”

Section: Introductionmentioning

confidence: 99%

Realization of an Electronically Tunable Resistor-Less Floating Inductance Simulator Using VCII

et al. 2022

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In this paper, a new implementation of an electronically tunable resistor-less floating inductance simulator using a second-generation voltage conveyor (VCII) is presented. The proposed circuit is resistor-free (benefiting from the intrinsic resistors at the Y terminals of the employed VCIIs) and composed of three VCIIs and a single grounded capacitor. Using a control current (Icon), the value of impedance at the Y terminal of the VCII is varied, whereby the value of the simulated inductance is tuned. The proposed circuit is designed at a transistor level using 0.18 µm TSMC CMOS parameters and ±0.9 V supply voltage. PSpice simulations are carried out to confirm the effectiveness of the proposed circuit. For a range of Icon from 0 µA to 50 µA, the value of the simulated L can be varied from −576 µH to −324 µH and from +316 µH to +576 µH for negative and positive simulators, respectively, in the frequency range of 100 kHz–3 MHz. Favorably, the value of the series resistance remains below 76 Ω. Simulation results show an error value below 4.8% and power consumption variation is from 1.64 mW to 1.92 mW. Moreover, application of the proposed circuit as a standard band-pass RLC filter is also included.

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New negative‐grounded capacitance multiplier circuits

Raj

Bhaskar

Shrivastava

et al. 2022

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A New Extremely Low Power Temperature Insensitive Electronically Tunable VCII-Based Grounded Capacitance Multiplier

Cited by 35 publications

References 21 publications

Towards Realization of a Low-Voltage Class-AB VCII with High Current Drive Capability

Towards Realization of a Low-Voltage Class-AB VCII with High Current Drive Capability

Realization of an Electronically Tunable Resistor-Less Floating Inductance Simulator Using VCII

New negative‐grounded capacitance multiplier circuits

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