A compact four quadrant CMOS analog multiplier

Rocha-Pérez, José Miguel; Zamora-Mejia, Gregorio; Diaz-Armendariz, Alejandra; Bautista-Castillo, Alejandro; Díaz-Sánchez, A.; Ramírez-Angulo, J.

doi:10.1016/j.aeue.2019.06.002

Cited by 11 publications

(2 citation statements)

References 7 publications

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“…4 shows the results of the simulation test of thetransfer (DC) characteristics of the proposed multiplier circuit in the case whenthe input currents are continuously changed in the range from −100 up to +100 μA.Based on this, it can be concluded that the linearity in the transfer characteristicis provided in this range, while the maximum value of THD is about 0.1%. Theproposed multiplier provides a simpler configuration then the circuits described in[3, 19, 31–35], while the low power consumption (<1 mW) employs only asingle VDTA. For these reasons, the proposed multiplier configuration can be usedfor the realisation of variable gain amplifiers, adaptive filters, phase‐lockedloops, amplitude modulators, squarer and frequency doublers [31].…”

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

New current‐mode RMS‐to‐DC converters and four‐quadrant multiplier/divider based on VDTA

Petrović

2020

IET Circuits, Devices & Systems

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The study presents two new realisations of bipolar two-quadrant implicit RMS-to-DC converter and four-quadrant multiplier/divider employing two VDTAs (voltage differential transconductance amplifier) and grounded passive elements. The converters provide the operating frequency of up to 10 MHz with increased precision in the processing of input currents signals, when compared to known realisations. Errors related to the signal processing and errors bound were investigated and presented in this study. The results obtained from the simulation tests in HSPICE and the experimentally realised models of the converters showed a good match with the theoretical anticipation. The maximum power consumption of the converters is 2.82 mW, at ±1.2 V supply voltages.

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Section: Simulation and Experimental Resultsmentioning

confidence: 99%

New current‐mode RMS‐to‐DC converters and four‐quadrant multiplier/divider based on VDTA

Petrović

2020

IET Circuits, Devices & Systems

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“…The Gilbert cell, shown in Fig. 1 [1], is the base for many variations of this type of multipliers [2]- [10]. It consists of two cross-coupled differential pairs formed by transistors M1-M4 and controlled by one differential input signal 𝑉 𝑥𝑦 = 𝑉 𝑥 − 𝑉 𝑦 .…”

Section: Conventional Four-quadrant Multipliersmentioning

confidence: 99%

Four-quadrant multiplier using the floating-bulk technique for rail-to-rail input range and insensitivity to different input dc levels

Padilla-Cantoya

Gurrola-Navarro

Bonilla-Barragan

et al. 2022

IEICE Electron. Express

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A four-quadrant analog multiplier with ultra-low supply voltage operation, rail-to-rail input swing and insensitive to different dc levels between the multiplied input signals is presented. It is based on the Floating-Bulk technique, in which the input signal is coupled to the bulk terminal of a PMOS transistor by means of an input capacitor. This allows rail-to-rail operation and eliminates the dc level of the input signals regardless of the offset between them, maintaining linearity. Moreover, it also eliminates the threshold-voltage requirement in the signal path of the input transistors, allowing very low voltage operation defined by a gate-source and a drain-source voltages. Experimental results in 0.5µm technology demonstrate rail-to-rail operation with a 1.1 V supply voltage even with different dc level voltages between the multiplied input signals. It offers a distortion of THD = 0.95 % for an input signal of 0.2Vpp at 100kHz.

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Four-Quadrant CMOS Analog Current Multiplier Using Frequency Compensation and 1.5 V Supply

et al. 2021

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A compact four quadrant CMOS analog multiplier

Cited by 11 publications

References 7 publications

New current‐mode RMS‐to‐DC converters and four‐quadrant multiplier/divider based on VDTA

New current‐mode RMS‐to‐DC converters and four‐quadrant multiplier/divider based on VDTA

Four-quadrant multiplier using the floating-bulk technique for rail-to-rail input range and insensitivity to different input dc levels

Four-Quadrant CMOS Analog Current Multiplier Using Frequency Compensation and 1.5 V Supply

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