OTA high pass filter-based multiphase sinusoidal oscillator

This document is the Accepted Manuscript version of the following article: Hu, Z., Wang, C., Sun, J. et al. ???A wideband linear tunable CDTA and its application in field programmable analogue array???, Analog Integrated Circuits and Signal Processing, Vol. 88 (3): 465-483, September 2016. Under embargo. Embargo end date: 6 June 2017. The final publication is available at Springer via https://link.springer.com/article/10.1007%2Fs10470-016-0772-7 ?? Springer Science+Business Media New York 2016In this paper, a NMOS-based wideband low power and linear tunable transconductance current differencing transconductance amplifier (CDTA) is presented. Based on the NMOS CDTA, a novel simple and easily reconfigurable configurable analogue block (CAB) is designed. Moreover, using the novel CAB, a simple and versatile butterfly-shaped FPAA structure is introduced. The FPAA consists of six identical CABs, and it could realize six order current-mode low pass filter, second order current-mode universal filter, current-mode quadrature oscillator, current-mode multi-phase oscillator and current-mode multiplier for analog signal processing. The Cadence IC Design Tools 5.1.41 post-layout simulation and measurement results are included to confirm the theory

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“…28 Fig. 37 is main due to the 2nd and 3nd harmonic frequency components of multi-phase oscillators [48][49][50].…”

Section: The Chip and Its Measurement Resultsmentioning

confidence: 99%

A wideband linear tunable CDTA and its application in field programmable analogue array

Wang

Sun

et al. 2016

Analog Integr Circ Sig Process

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“…The multiphase sinusoidal oscillator (MSO) is one important type of oscillator, which is useful for various electronic applications in communication systems, control systems, instruments, power electronics, single-sideband generators [1], etc. The MSO is designed by first-order circuits, such as an all-pass filter [2][3][4][5][6], a high-pass filter [7][8], and a low-pass filter [9][10][11][12][13][14][15][16][17][18][19]. To achieve the same magnitude and phase difference of each output sinusoidal waveform, the MSO should be designed from the same sub-circuit without an additional amplifier.…”

Section: Introductionmentioning

confidence: 99%

“…In the literature, numerous types of multiphase sinusoidal oscillators employing active building blocks have been proposed [2-5, 7-8, 10-19]. The proposed multiphase sinusoidal oscillators in [2][3][4][5] are based on the first-order all-pass (AP) filter, the high-pass (HP) filter [7][8], and the low-pass (LP) filter [10][11][12][13][14][15][16][17][18][19]. Each phase of the proposed sinusoidal oscillators in [3,[7][8]13] requires two active elements.…”

Section: Introductionmentioning

confidence: 99%

“…The proposed multiphase sinusoidal oscillators in [2][3][4][5] are based on the first-order all-pass (AP) filter, the high-pass (HP) filter [7][8], and the low-pass (LP) filter [10][11][12][13][14][15][16][17][18][19]. Each phase of the proposed sinusoidal oscillators in [3,[7][8]13] requires two active elements. The control of the frequency and condition are not independently controlled [10][11][12][13][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Electronically Tunable Voltage-Mode Multiphase Sinusoidal Oscillator with Low Output Impedance Nodes Employing VD-DIBAs

Duangmalai

Manasri

Kwawsibsam

et al. 2023

Int. j. eng. technol. innov.

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The multiphase sinusoidal oscillator (MSO) is useful for various electrical and electronic applications. This study aims to design an MSO employing voltage differencing differential input buffered amplifiers (VD-DIBAs). The design procedure is based on cascading the first-order low-pass filter. Each phase consists of a VD-DIBA, two resistors, and a grounded capacitor. An odd-phase system without requiring an additional amplifier. The frequency is electronically controlled through the bias current without affecting the condition. The sinewave amplitudes and the phase difference between each waveform are identical. The proposed MSO is designed to obtain three-phase waveforms (n = 3). PSPICE simulation demonstrates the performance of the proposed oscillator with 0.18 μm TSMC CMOS parameters with ±0.9 V power supply. The feasibility of the proposed MSO is also verified with experiments using the VD-DIBA constructed from commercial integrated circuits (ICs) with a ±5 V power supply. The simulated and experimental results align with theoretical predictions.

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“…MSO is widely used in many fields, such as communications, where it is used in phase modulators, quadrature mixers, and singlesideband generators [1,2], in power electronics systems for work related to a three-phase induction motor drive [3], and in measurement systems, where it is used for the selective voltmeters and vector generators [4]. From research and reviews of the literature, many researchers and publishers have suggested different ways to design the MSO, such as by using a low-pass filter, high-pass filter, and all-pass filter, which used active building 1blocks at high performance in development [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. Table 1 summarized the various MSOs have different advantages: a single active building block is used per *Corresponding Author Institutional Email: Adirek.ja@rmuti.ac.th (A.…”

Section: Introductionmentioning

confidence: 99%

Mixed-mode Multiphase Sinusoidal Oscillators using Differential Voltage Current Conveyor Transconductance Amplifiers and Only Grounded Passives Components

Phianpranthong

Suksawad

Jantakun

2023

IJE

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This article is about mixed-mode multiphase sinusoidal oscillators that are made up of differential voltage current conveyor transconductance amplifier (DVCCTA) and use all the grounded passive components. The proposed multiphase sinusoidal oscillators provide a single DVCCTA, a single grounded resistor and a capacitor for each phase which is suitable for integrated circuit implementation. In addition, the sinusoidal outputs generate currents and voltages simultaneously. The current signals from the outputs have high impedances, which make it easier to connect them directly to the next circuit or stage. The proposed circuits can generate multiphase sinusoidal signals that are both equally phased and in amplitude. The oscillation can be adjusted simultaneously of the frequency of oscillation by the electronic method. A simulation with the PSPICE program and an experiment with commercially available ICs (AD830, AD844, and LM13700N) demonstrated. The results show the efficiency of the circuit is completely consistent with the theory.

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OTA high pass filter-based multiphase sinusoidal oscillator

Cited by 6 publications

References 16 publications

A wideband linear tunable CDTA and its application in field programmable analogue array

A wideband linear tunable CDTA and its application in field programmable analogue array

Electronically Tunable Voltage-Mode Multiphase Sinusoidal Oscillator with Low Output Impedance Nodes Employing VD-DIBAs

Mixed-mode Multiphase Sinusoidal Oscillators using Differential Voltage Current Conveyor Transconductance Amplifiers and Only Grounded Passives Components

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