Improved Accuracy Current-Mode Multiplier Circuits With Applications in Analog Signal Processing

Popa, Cosmin

doi:10.1109/tvlsi.2013.2239670

Cited by 49 publications

(16 citation statements)

References 20 publications

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“…The drawbacks of these proposed resistors are short range of programmability, large silicon area and high power dissipation. Various applications of CMOS resistors are current to voltage converters, current mode dividers [12][13][14], multipliers [13,[15][16][17][19][20][21], filters [22][23][24] and automated measurement systems [25]. These analog computational blocks which are implemented using these reported resistors lack high performance.…”

Section: Introductionmentioning

confidence: 99%

High-performance programmable grounded resistor and its applications

2018

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Programmable resistor and analog computational circuits are essential for many applications such as analog signal processing units, automatic gain control, neural, fuzzy and instrumentation systems. A high-performance programmable grounded resistor (PGR) using complementary metal oxide semiconductor (CMOS) technology is proposed in this paper. A highly linear CMOS resistor with equivalent resistance ranging from 9.4 to 1.5 k is obtained by cancelling the nonlinear term present in the current equation of an MOSFET working in the linear region. The proposed resistor operates on both positive as well as negative input voltage. The inherited features of PGR are simplicity, extensive control voltage range, wider bandwidth and low-power dissipation. Additionally, analog computational units such as multiplier, squarer and divider are also discussed as applications of the PGR. All circuits are implemented and simulated using TSMC 0.13 µm CMOS technology in SPICE. ARTICLE HISTORY

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Section: Introductionmentioning

confidence: 99%

High-performance programmable grounded resistor and its applications

2018

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“…Todays, multiplier circuits, especially the four-quadrant ones, are frequently used in such wide range of applications as automatic gain control, phase locked loop, modulation, detection, adaptive filters, square rooting of signals, FPAAs, and neural networks [1,2]. In all these mentioned application, power consumption plays a major role while, using current-mode technique has proved to highly reduce this major parameter [3,4].…”

Section: -Introductionmentioning

confidence: 99%

An Offset-free High linear Low Power High Speed Four-Quadrant MTL Multiplier

Jafari

Abbasi

Azhari

2017

IJSE

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In this paper a new CMOS current-mode four-quadrant analog multiplier circuit is proposed. The major advantages of this design are high linearity, high speed and low power consumption. Removing dc offset is the most important improvement in this topology. The circuit is designed with 1.8V supply voltage and is simulated using HSPICE simulator by level 49 parameters in 0.18µm standard CMOS TSMC technology. The aspect ratios of the MOSFETs are optimized using Evolutionary algorithm by MATLAB. The simulation results of this analog multiplier demonstrate a maximum linearity error of 2.6%, a THD of 1.77%, maximum power consumption of 157 µW,-3dB bandwidth of 241MHz and almost free from dc offset.

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“…This approach suffers from noise associated with switching. In references [4][5][6][7], MOSFETs in saturation region are used to design some computational circuit. In [8], a floating-gate MOS transistors are used to implement a four quadrant multiplier.…”

Section: Introductionmentioning

confidence: 99%

A compact CMOS current-mode analog multi-functions circuit

Al-Suhaibani

Al-Absi

2015

Analog Integr Circ Sig Process

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A new CMOS current-mode analog multifunction circuit is proposed. The proposed circuit is capable of performing multiplication, squaring, division, and different types of controllable gain amplifiers. The design is based on translinear principle using MOSFETs operating in subthreshold region. The proposed design is compact and operates from ±0.6 V DC power supply. The functionality of the design was confirmed using Tanner Tspice with 0.18 lm CMOS technology. Simulation results show that the -3 dB frequency is around 1.5 MHz, linearity error of 0.63 %, THD of 0.08 % when configured as an amplifier, and the maximum power consumption is 1.16 lW.

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Improved Accuracy Current-Mode Multiplier Circuits With Applications in Analog Signal Processing

Cited by 49 publications

References 20 publications

High-performance programmable grounded resistor and its applications

High-performance programmable grounded resistor and its applications

An Offset-free High linear Low Power High Speed Four-Quadrant MTL Multiplier

A compact CMOS current-mode analog multi-functions circuit

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