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Low power dynamic voltage scaling and CCGDI based Radix-4 MBW multiplier using parallel HA and FA based counters for on-chip filter applications

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Abstract

In this paper, a new design of low power, high performance Radix-4 MBW multiplier unit has been described. The low power performance has been achieved by dynamic voltage scaling. Based on CCGDI technique which reduces the switching activity and output capacitance, the proposed multiplier unit has been designed by utilizing three different low power methodologies i.e., reduction in output capacitance and switching activity along with biasing voltage reduction. In order to reduce the number of transistor and delay, here GDI based parallel adders are used in the Wallace tree counters. The multiplier has been implemented with constant threshold voltage PTM 45 nm devices technology and simulated in standard CAD tool simulator for 4, 8 and 16 bit operand multiplications. The proposed design consumes 238.98 µw average power and it has a propagation delay of 2.458 ns for 16 × 16 bit multiplications at speed 100 MBps which is 47% better in terms of power-delay-product than counter based GDI Wallace tree multiplier structure.

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Abbreviations

CAD:

Computer aided design

CCGDI:

Cyclic Combinational Gate Diffusion Input

CMOS:

Complementary Metal Oxide Semiconductor

DA:

Distributive Arithmetic

DSP:

Digital Signal Processing

DVS:

Dynamic Voltage Scaling

EDA:

Electronic Design Automation

FA:

Full Adder

FF:

Fast nmos Fast pmos

FIR:

Finite Impulse Response

FPGA:

Field Programmable Gate Array

GDI:

Gate Diffusion Input

HA:

Half Adder

LS:

Level Shifter

MAC:

Multiplier and Accumulator

MBW:

Modified Booth Wallace

MEMS:

Micro Electro Mechanical Systems

PDP:

Power Delay Product

PPG:

Partial Product Generators

PTM:

Predictive Technology Model

PVT:

Process Voltage Temperature

SS:

Slow nmos Slow pmos

TT:

Typical Transistor

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Correspondence to Biswarup Mukherjee.

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Mukherjee, B., Ghosal, A. Low power dynamic voltage scaling and CCGDI based Radix-4 MBW multiplier using parallel HA and FA based counters for on-chip filter applications. Sādhanā 45, 119 (2020). https://doi.org/10.1007/s12046-020-01340-2

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  • DOI: https://doi.org/10.1007/s12046-020-01340-2

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