New Configuration for OFCC-Based CM SIMO Filter and its Application as Shadow Filter

Nand, Deva; Pandey, Neeta

doi:10.1007/s13369-017-3058-1

Cited by 19 publications

(19 citation statements)

References 32 publications

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“…The system that is suitable for realizing MISO shadow filters has been proposed in [23]. Based on the systems in [20][21][22][23], several shadow filters of agile filters have been proposed based on current-mode approaches [24][25][26][27][28][29][30][31] and voltage-mode approaches [32][33][34][35][36][37][38][39][40][41][42][43][44].…”

Section: Introductionmentioning

confidence: 99%

0.5 V Multiple-Input Multiple-Output Differential Difference Transconductance Amplifier and Its Applications to Shadow Filter and Oscillator

et al. 2023

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This paper presents new applications of low-voltage and low-power multiple-input multipleoutput differential difference transconductance amplifier (DDTA). The multiple-input bulk-driven MOS transistor (MIBD MOST) technique provides multiple-input of the active device that simplifies the application's topology and reduces its power consumption. The proposed DDTA has been used to realize multiple-input single-output shadow filter. Both voltage-and transimpedance-mode filtering functions can be obtained. The natural frequency and the quality factor of the shadow filter can be independently and electronically controlled using DDTA-based amplifiers. The proposed shadow filter has been modified to work as a shadow oscillator. The condition and frequency of oscillation can be controlled independently and electronically. The DDTA is capable to work with 0.5V supply voltage and consumes 218.2 nW. The applications have been designed and simulated in Cadence using 0.18µm TSMC CMOS technology.INDEX TERMS differential difference transconductance amplifier (DDTA), shadow filter, shadow oscillator, analog filter, low-voltage, low-power CMOS

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Section: Introductionmentioning

confidence: 99%

0.5 V Multiple-Input Multiple-Output Differential Difference Transconductance Amplifier and Its Applications to Shadow Filter and Oscillator

et al. 2023

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“…Over the period, several current-mode active blocks evolved . Some of the most important active blocks in the literature are CCII [2], CCCII [3][4], DVCC [5][6], OFCC [7][8], CDTA [9], MOCCII [10][11], VDTA [12], ICCII [13], CFTA [15], VDCC [16], ZC-CFTA [17], DOCCII [18], MOCCA [19], MO-CCCA [20], CCCCTA [21], DDCC [22], EX-CCCII [23], DV-EXCCCII [24], LT1228 [25], FTFNTA [26], DXCCTA [27], FDCCII [14,28], and many more.…”

Section: Introductionmentioning

confidence: 99%

“…The use of more passive components increases circuit complexity. The electronically tunable filters with three OFCCs and more passive elements are presented in [7][8]. Two CDTAs and one current amplifier-based electronically tunable filter are presented in [9].…”

Section: Introductionmentioning

confidence: 99%

DV-EXCCCII Based Resistor-Less Current-Mode Universal Biquadratic Filter

Singh

Nagaria

2023

Adv. technol. innov.

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This study aims to present a new resistor-less current-mode multi-input single-output universal filter. The current-mode’s design approach is used to obtain the proposed circuit. This circuit employs a single differential voltage extra-X current controlled current conveyor (DV-EXCCCII) and two grounded capacitors. This multifunction filter circuit offers low-pass, high-pass, all-pass, band-pass, and band-reject filters at a single output terminal without passive component matching constraints. The same circuit topology can obtain all second-order filter functions with different input conditions. The proposed circuit design is electronically adjustable with the bias current of DV-EXCCCII. Because of its high output impedance, this arrangement is suitable for cascading other current-mode circuits. The proposed circuit is simulated by Cadence Spectre with 0.18 µm UMC CMOS technology process parameters at ± 0.9 V supply voltages. The simulation results agree well with the theoretical concept of the proposed circuit.

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“…There are many shadow filters (also known as frequency-agile filters) realized using variant active elements available in the literature [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. In [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ], current-mode (CM) shadow filters have been reported whereas in [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 ] voltage-mode (VM) shadow filters have been introduced. This paper is focused on the VM filters which offer high-input and low-output impedances, electronic tuning ability, and use grounded passive components.…”

Section: Introductionmentioning

confidence: 99%

Shadow Filters Using Multiple-Input Differential Difference Transconductance Amplifiers

Kumngern

Khateb

Kulej

2023

Sensors

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This paper presents new voltage-mode shadow filters employing a low-power multiple-input differential difference transconductance amplifier (MI-DDTA). This device provides multiple-input voltage-mode arithmetic operation capability, electronic tuning ability, high-input and low-output impedances. Therefore, the proposed shadow filters offer circuit simplicity, minimum number of active and passive elements, electronic control of the natural frequency and the quality factor, and high-input and low-output impedances. The proposed MI-DDTA can work with supply voltage of ±0.5 V and consumes 9.94 μW of power. The MI-DDTA and shadow filters have been designed and simulated with the SPICE program using 0.18 μm CMOS process parameters to validate the functionality and workability of the new circuits.

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New Configuration for OFCC-Based CM SIMO Filter and its Application as Shadow Filter

Cited by 19 publications

References 32 publications

0.5 V Multiple-Input Multiple-Output Differential Difference Transconductance Amplifier and Its Applications to Shadow Filter and Oscillator

0.5 V Multiple-Input Multiple-Output Differential Difference Transconductance Amplifier and Its Applications to Shadow Filter and Oscillator

DV-EXCCCII Based Resistor-Less Current-Mode Universal Biquadratic Filter

Shadow Filters Using Multiple-Input Differential Difference Transconductance Amplifiers

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