CCII-Based Voltage Amplifier Optimization for Reduced Relative Gain Error

Colucci, Paolo; D’Amico, A.; Marcellis, Andrea De; Falconi, Christian; Ferri, Giuseppe; Giovannelli, Francesco; Parente, Francesca Romana; Stornelli, Vincenzo

doi:10.1007/s00034-017-0590-x

Cited by 6 publications

(3 citation statements)

References 24 publications

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“…In this point of view, current mode operational blocks or second-generation current conveyor (CCII)-based circuits are employed in different applications in previous works. [2][3][4][5][6][7][8][9][10] However, they have some limitations in comparison to other building blocks. First, they bring huge complexity in voltage mode or mixed mode operations because of increasing additional circuitry and power consumption.…”

Section: Introductionmentioning

confidence: 99%

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VCII based electronically tunable multi‐mode filter structure with fourth order low‐pass function for the HF band applications

Ozenli

Yeşil

2023

Circuit Theory & Apps

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SummaryIn this paper, we propose an electronically tunable multi‐mode filter structure with fourth‐order current mode low‐pass function based on second‐generation voltage conveyor (VCII) for the analog baseband applications. The fourth‐order low‐pass circuit consists of second‐order core filter structures including band and low‐pass outputs. The proposed fourth‐order circuit's cut‐off frequency can be easily varied from 1.6 up to 17.2 MHz for the high frequency (HF) applications used in multi‐standard receivers. Also, the core circuit of the fourth‐order architecture possesses current mode and transresistance mode filter functions enabling signal conversion and different signal operations. The given architecture has 116 μm × 39 μm chip area, and post layout simulations are demonstrated extensively. In addition, the performance of the proposed structure is examined based on commercial elements (AD844s). Also, detailed linearity analysis is given using post layout extractions. In fourth‐order low‐pass structure, cut‐off frequency can be safely tuned from 1.6 up to 17.2 MHz, whereas consumed power can be reduced to 0.769 μW. It can be investigated that the proposed circuit can be safely used for the analog baseband and HF operations in wireless receivers.

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Section: Introductionmentioning

confidence: 99%

“…In this point of view, current mode operational blocks or second‐generation current conveyor (CCII)‐based circuits are employed in different applications in previous works 2–10 . However, they have some limitations in comparison to other building blocks.…”

Section: Introductionmentioning

confidence: 99%

VCII based electronically tunable multi‐mode filter structure with fourth order low‐pass function for the HF band applications

Ozenli

Yeşil

2023

Circuit Theory & Apps

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“…The second generation current-conveyor (CCII) is a useful current-mode building block which has found a number of applications in low-voltage systems [4]- [11]. In the last years several low-voltage low-power CCIIs have been presented in the literature, for instance a CCII based on bulk-driven folded cascode OTA with ± 0.4 V voltage supply and 64 µW power consumption has been presented in [7], a CCII based on floating-gate folded cascode OTA with ± 0.5 V voltage supply and 10 µW power consumption has been presented in [8], a CCII based on bulk-driven voltage follower with 0.5 V voltage supply and 30 µW power consumption has been presented in [9], a gate-driven CCII using adaptive biasing technique with ±0.75 V voltage supply and 150 nW power consumption has been presented in [10], a gate-driven subthreshold CCII with 0.4 V voltage supply and 1.8 µ W power…”

Section: Introductionmentioning

confidence: 99%

0.3V Bulk-Driven Current Conveyor

2019

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This paper presents the design and the experimental results of a sub 0.5 V bulk-driven (BD) current conveyor (CCII) using 0.18 µm TSMC CMOS technology with a total chip area of 0.0134 mm 2 . All transistors are biased in the subthreshold region for low-voltage low-power operation and the input transistors are controlled from their bulk terminals for rail-to-rail input voltage range. The circuit is designed to work with voltage supply (V DD = 0.3V), which is much lower than the threshold voltage of the MOS transistor (V TH =0.5V) while consuming 19 nW of power. The measurement results confirm the proper function of the proposed circuit.INDEX TERMS Bulk-driven, low-voltage, low-power, sub 0.5-V circuits.

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