A FG-MOS Based Fully Differential Current Controlled Conveyor and Its Applications

Despite the recent publication of the analytical synthesis of voltage-mode even/odd-nth-order differential difference current conveyor (DDCC) and fully differential current conveyor II (FDCCII)-grounded resistor and capacitor universal Butterworth/Chebyshev filter structures, an elliptic voltage-mode even/odd-nth-order DDCC and FDCCII-based filter structure is yet to be presented in the literature. Under the restriction of a finite order, the elliptic filter is better at meeting the stringent cutoff rate of a very narrow transition band as compared to other kinds of filters, thus making the synthesis of such an elliptic filter to be extremely useful. In this study, one even-nth-order and two odd-nth-order elliptic filter structures are analytically synthesised using DDCCs and FDCCIIs. The feasibility of such structures is validated through H-spice simulations on the proposed elliptic third-order low-pass and elliptic fourth-order low-pass, high-pass, band-pass, and band-reject filters.

“…5). Equations (47) and (50) belong to the second type, which may be realised, as in the case of ASM1, using two grounded resistors, one grounded capacitor and an FDCCII with…”

Section: Analytical Synthesis Methods (Asm)mentioning

confidence: 99%

Analytical synthesis of elliptic voltage‐mode even/odd‐ n th‐order filter structures using DDCCs, FDCCIIs, and grounded capacitors and resistors

Chang

Swamy

et al. 2019

“…Therefore, many LV and LP active building blocks have been proposed; see, for example [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40]. The circuits in [26][27][28][29] proposed op-amps, the circuits in [30][31][32][33] proposed operational transconductance amplifiers, the circuits in [34,35] proposed CCIIs, the circuits in [36,37] proposed differential difference current conveyor/differential voltage-current conveyor while the circuits in [38][39][40] proposed fully differential current conveyors and the circuits in [41] proposed current feedback operational amplifier. LV and LP differential-difference amplifiers are also proposed in [42,43].…”

Section: Introductionmentioning

confidence: 99%

Fully‐balanced four‐terminal floating nullor for ultra‐low voltage analogue filter design

Kumngern

Khateb

Kulej³

2017

This study presents a new complementary metal-oxide-semiconductor (CMOS) structure for a fully balanced four-terminal floating nullor (FBFTFN) which is suitable for ultra-low-voltage and low-power applications. This structure employs a bulk-driven quasi-floating-gate (BD-QFG) metal-oxide-semiconductor transistor technique to provide the capability of ultra-low-voltage, low-power operations as well as extended input voltage range. The functionality of the proposed circuits is demonstrated through simulations using SPICE and TSMC 0.18 µm n-well CMOS technology with supply voltage of 0.5 V and dissipation power of 9.4 µW. To confirm the attractive features of the proposed circuit, the fully balanced filters such as band-pass Sallen-Key filter, voltage-mode universal biquadratic filter and current-mode sixth-order low-pass filter using proposed BD-QFG FBFTFN as active elements have been designed.

“…For the time being, there is a great demand on designing and implementing of low‐voltage (LV) and low‐power (LP) integrated circuits such as active elements presented in [12–43]. This demand is based on the fact that LV LP circuits are needed in portable equipment, smart phones, tablet computers and neural network, especially in biomedical and bioelectronics systems.…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, there is no ultra‐LV and LP FDCCII available in the open literature. Although, there are two FDCCIIs using LV LP techniques such as floating‐gate and bulk‐driven (BD) techniques presented in [28, 31], the supply voltage of these circuits is still ≥1 V.…”

Section: Introductionmentioning

confidence: 99%

0.5 V fully differential current conveyor using bulk‐driven quasi‐floating‐gate technique

Kumngern

Khateb²

2016

This study presents a new low-voltage (LV) supply and low-power consumption bulk-driven quasi-floating-gate fully differential current conveyor (BD-QFG-FDCCII) active element which is suitable for LV signal processing applications. The bulk-driven technique is used to achieve LV supply as low as a 0.5 V and extended input voltage swing. On the other hand, the quasi-floating-gate technique is used to achieve high-frequency performance. To prove the workability of the proposed circuit, new voltage-mode biquadratic filter and fifth-order leapfrog low-pass filter using BD-QFG-FDCCIIs as active devices have been designed and illustrated in this study. The functionality of the proposed circuits is demonstrated through PSPICE simulations using Taiwan Semiconductor Manufacturing Company (TSMC) 0.18 µm n-well complementary metal-oxide-semiconductor technology with a 0.5 V supply voltage and a power consumption of 16.1 µW.