Realization of First-Order Current-Mode Filters With Low Number of Mos Transistors

Yüce, Erkan; Mınaeı, Shahram; Herencsár, Norbert; Koton, Jaroslav

doi:10.1142/s0218126612500715

Cited by 34 publications

(21 citation statements)

References 19 publications

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“…Among all the existing circuits to the best of our knowledge, none showed the characteristics required for the linearization of HPA and telecommunication baseband signal processing. First, some cannot be tuned [5]- [7]. When the circuit is tunable, the phase shift range is either limited [8], [9], or maximal at frequencies too low for baseband signal processing and phase HPA linearization [4], [10].…”

Section: Phase Shifter Architecture a State Of The Artmentioning

confidence: 99%

An Analog CMOS Voltage-Controlled Phase-Shifter With A 100° Tuning Range For Telecommunication Baseband Signal Processing

Mulliez

Bernal

Tap

2019

2019 26th IEEE International Conference on Electronics, Circuits and Systems (ICECS)

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In order to correct phase non-linearities due to High Power Amplifiers (HPA) operating near saturation in telecommunication transceivers, a voltage-controlled phase-shifter based on Differential Difference Current Conveyors (DDCC) and a tunable resistor were developed. In order to suit a large variety of HPAs with broad phase non-linearities, the circuit's tuning capability has even been optimized up to an unprecedented 100 • while maintaining a good linearity (THD<-30 dB) and a gain close to 0 dB at 50 MHz. Designed in a 3.3 V 0.35 µm CMOS technology, the circuit current consumption ranges from 3.5 mA to 4.5 mA for a 50 MHz bandwidth, depending on the tuning range to be achieved. This paper describes the general architecture of the phase shifter as well as the inner structure of each implemented function and presents simulation results of the whole circuit.

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Section: Phase Shifter Architecture a State Of The Artmentioning

confidence: 99%

An Analog CMOS Voltage-Controlled Phase-Shifter With A 100° Tuning Range For Telecommunication Baseband Signal Processing

Mulliez

Bernal

Tap

2019

2019 26th IEEE International Conference on Electronics, Circuits and Systems (ICECS)

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“…Nowadays, researchers have also shown massive interest in the designing of universal filter structures. In existing first-order filter designs (Abaci & Yuce, 2018;Arslanalp, 2011;Ayten et al, 2014;Beg et al, 2011;Chaturvedi & Kumar, 2018b;Chaturvedi & Mohan, 2015a;Chaturvedi et al, 2020;Horng, 2010;Kumar & Chaturvedi, 2016;Kumar & Paul, 2017;Maheshwari, 2007a;Maheshwari, 2007b;Maheshwari, 2008;Maheshwari, 2018;Maheshwari & Khan, 2001;Maheshwari & Khan, 2003;Maheshwari et al, 2006;Mohan, 2013;Mohan et al, 2013;Safari et al, 2017;Yuce & Minaei, 2016;Yuce et al, 2013), a universal filter circuit is one which generates low-pass, high-pass, and all-pass responses within a single circuit. Contemporary research works (Abaci & Yuce, 2018;Arslanalp, 2011;Beg et al, 2011;Chaturvedi et al, 2020;Horng, 2010;Kumar & Paul, 2017;Maheshwari, 2008;Maheshwari & Khan, 2001;Maheshwari et al, 2006;Safari et al, 2017;Yuce & Minaei, 2016;Yuce et al, 2013) present diverse first-order universal filter structures and aim to achieve some good signal processing attributes as follows:…”

Section: Introductionmentioning

confidence: 99%

Resistorless Realization of First‐Order Current Mode Universal Filter

et al. 2020

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This paper proposes a first-order current mode universal filter employing single active building block, namely differential difference dual-X second generation current conveyor. The proposed filter is designed to provide multiple filter responses simultaneously, namely low-pass, high-pass, and all-pass on applying a current signal at its input terminal. The proposed work also enjoys the presence of metal oxide semiconductor transistors working as tunable resistors. Some of the key features of the proposed filter are as follows: use of single passive element (a grounded capacitor), ease of cascadability as all the outputs are available at highimpedance ports, low active and passive sensitivities, significantly high frequency of operation (3 MHz), low total harmonic distortion of output current (1.28%), low output current noise (10 pA/√Hz), and low power dissipation (2 mW). A detailed study of device nonidealities is also presented to show the satisfactory performance of the proposed structure under all practical considerations. PSPICE simulations effectively demonstrate the good performance of the proposed filter.

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“…In Ref. 5 two NMOS transistors, both operating in saturation region, forming inverting voltage buffer is used. Second-generation current conveyor (CCII) [6][7][8][9][10][11][12] , second-generation currentcontrolled conveyor (CCCII) [13][14][15][16][17][18][19][20] , dual-X second-generation multi-output current conveyor (DX-MOCCII) 21,22 , third-generation current conveyor (CCIII) 23,24 , gain-variable third-generation current conveyor (GVCCIII) 25 , and differential voltage current conveyor (DVCC) 26,27 were also very popular and useful ABBs for first-order APF design in the past.…”

Section: Introductionmentioning

confidence: 99%

Resistorless Current-Mode First-Order All-Pass Filter with Electronic Tuning Employing Low-Voltage CBTA and Grounded Capacitor

Herencsár

Koton

Lahiri³

et al. 2017

J CIRCUIT SYST COMP

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In this paper, a new realization of a current-mode first-order all-pass filter (APF) using a single active building block (ABB) and one grounded capacitor is presented. As the ABB, the current backward transconductance amplifier (CBTA) is used, which is one of the most recently reported active elements in the literature. The theoretical results are in detail verified by numerous SPICE simulations using a new low-voltage implementation of CBTA. In the design, the PTM 90[Formula: see text]nm level-7 CMOS process BSIM3v3 parameters with [Formula: see text]0.45[Formula: see text]V supply voltages were used. The proposed resistorless CBTA-C APF provides easy electronic tuning of the pole frequency in the frequency range from 763[Formula: see text]kHz to 17.6[Formula: see text]MHz, which is more than one decade. Maximum power dissipation of the circuit is 828[Formula: see text][Formula: see text]W at bias current 233[Formula: see text][Formula: see text]A. Nonideal, parasitic effects, sensitivity analyses, temperature and noise variation, current swing capability, and Monte Carlo analysis results are also provided. Compared to prior state-of-the-art works, the proposed CBTA-C APF has achieved the highest figure of Merit value, which proves its superior performance.

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Realization of First-Order Current-Mode Filters With Low Number of Mos Transistors

Cited by 34 publications

References 19 publications

An Analog CMOS Voltage-Controlled Phase-Shifter With A 100° Tuning Range For Telecommunication Baseband Signal Processing

An Analog CMOS Voltage-Controlled Phase-Shifter With A 100° Tuning Range For Telecommunication Baseband Signal Processing

Resistorless Realization of First‐Order Current Mode Universal Filter

Resistorless Current-Mode First-Order All-Pass Filter with Electronic Tuning Employing Low-Voltage CBTA and Grounded Capacitor

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