A New High Drive Class-AB FVF-Based Second Generation Voltage Conveyor

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

doi:10.1109/tcsii.2019.2915814

Cited by 30 publications

(31 citation statements)

References 15 publications

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“…As can be seen from Table 2, the proposed topology links the current driving capabilities (at the Y terminal) of [16] to the extended input dynamic range (at the X and Z terminals). Moreover, unlike [17], where the authors make use of a universal voltage conveyor, the presented architecture uniquely implements a second generation voltage conveyor, thereby largely reducing the overall power consumption.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…This feature makes VCIIs a highly suitable candidate to replace CCIIs in applications requiring voltage output because they alleviate the need for an extra voltage buffer. Recently, VCIIs have attracted the attention of researchers, and their applications in implementing filters, gyrators, oscillators, inverting and non-inverting voltage amplifiers, current to voltage converters, differentiators and integrators, and readout circuits have been reported [13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…The low voltage low power restrictions imposed by advanced technologies necessitate the design of a high performance VCII circuit that is able to operate under low supply voltages and to provide an appropriate voltage swing at the voltage output port. Since previous implementations of VCIIs have suffered from limited voltage swing at the voltage output port [14][15][16], in this paper, we propose a new low voltage low power VCII with improved voltage range (rail-to-rail, (RtR)) characteristic at the output of terminal Z, but also at the input of terminal X. This will fully take advantage of its inherent transimpedance amplifier (TIA) behavior, making it suitable in applications where information has to be converted from the current to the voltage domain [21,22].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A New Rail-to-Rail Second Generation Voltage Conveyor

et al. 2019

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In this paper, a novel low voltage low power CMOS second generation voltage conveyor (VCII) with an improved voltage range at both the X and Z terminals is presented. The proposed VCII is formed by a current buffer based on a class AB regulated common-gate stage and a modified rail-to-rail voltage buffer. Spice simulation results using LFoundry 0.15 μm low-Vth CMOS technology with a ±0.9 V supply voltage are provided to demonstrate the validity of the designed circuit. Thanks to the class AB behavior, from a bias current of 10 µA, the proposed VCII is capable of driving 0.5 mA on the X terminal, with a total power consumption of 120 µW. The allowed voltage swing on the Z terminal is at least equal to ±0.83 V, while on the X terminals it is ±0.72 V. Both DC and AC voltage and current gains are provided, and time domain simulations, where the voltage conveyor is used as a transimpedance amplifier (TIA), are also presented. A final table that summarizes the main features of the circuit, comparing them with the literature, is also given.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A New Rail-to-Rail Second Generation Voltage Conveyor

et al. 2019

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“…The basic FVF circuit is reported in Figure 1a [34][35][36][37][38][39][40][41]. The applied signal V in is buffered to the source of transistor M l .…”

Section: The Flipped Voltage Followermentioning

confidence: 99%

A Novel General Purpose Combined DFVF/VCII Based Biomedical Amplifier

2020

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We here present a 0.15 µm CMOS high input impedance and low noise AC coupled flipped voltage follower-based amplifier for high integration level in integrated circuits in a wide range of sensing applications. With such a circuit, it is possible to achieve a high level of integration, thanks to the absence of passive resistors, and also to implement a very high input impedance without capacitive feedback thanks to bootstrap operation, thus offering a very low high-pass cutoff frequency. Simulated results with a proven and well modeled standard technology show a whole circuit input-referred noise of 5.4 µVrms. The bias voltage is ±0.6 V with a total power consumption of the single amplifier of 20 µW. The very low circuit complexity allows a very low estimated reduced area occupation giving, as a general example, the possibility of integrating an array of up to thousands of channels for biomedical applications. Detailed simulation results, PVT analysis and comparison tables are also presented in the paper.

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“…First of all, it is a mixed voltage-mode current-mode design, and thanks to this choice, it is able to merge the two different design conceptions, taking advantage of both of them. In addition, it is the first discrete hybrid interface designed at the transistor level, making use of the so-called second-generation voltage conveyor (VCII) [17][18][19][20]. To the best of our knowledge, no other discrete VCIIs have been presented in the literature up to now.…”

Section: Introductionmentioning

confidence: 99%

Silicon Photomultiplier Sensor Interface Based on a Discrete Second Generation Voltage Conveyor

Stornelli

Pantoli

Barile

et al. 2020

Sensors

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This work presents the design of a discrete second-generation voltage conveyor (VCII) and its capability to be used as electronic interface for silicon photomultipliers. The design addressed here exploits directly at the transistor level, with commercial components, the proposed interface; the obtained performance is valuable considering both the discrete elements and the application. The architecture adopted here realizes a transimpedance amplifier that is also able to drive very high input impedance, as usually requested by photons detection. Schematic and circuital design of the discrete second-generation voltage conveyor is presented and discussed. The complete circuit interface requires a bias current of 20 mA with a dual 5V supply voltage; it has a useful bandwidth of about 106 MHz, and considering also the reduced dimensions, it is a good candidate to be used in portable applications without the need of high-cost dedicated integrated circuits.

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A New High Drive Class-AB FVF-Based Second Generation Voltage Conveyor

Cited by 30 publications

References 15 publications

A New Rail-to-Rail Second Generation Voltage Conveyor

A New Rail-to-Rail Second Generation Voltage Conveyor

A Novel General Purpose Combined DFVF/VCII Based Biomedical Amplifier

Silicon Photomultiplier Sensor Interface Based on a Discrete Second Generation Voltage Conveyor

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