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Design of 4-bit absolute value detector with low energy
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Journal Article
Design of 4-bit absolute value detector with low energy
2023
Overview
The article highlights the latest developments in the design of low-power 4-bit Absolute Value Detector (AVD) circuits that are utilized in digital signal processing (DSP) applications. DSP applications like audio and video processing, biological signal processing, and digital communication systems rely heavily on the AVD circuit, which determines the absolute value of an input signal. The article introduces a low-energy 4-bit AVD circuit based on pass transistors that incorporates advanced optimization techniques like adiabatic logic, approximation techniques, and layout optimization. This optimized AVD circuit achieves remarkable results in terms of power consumption and energy efficiency. With a power consumption of just 0.6 nW and an energy efficiency of 0.6 pJ per cycle, the circuit maintains precision and rapid response time. These advancements in AVD circuit design can be highly beneficial for portable and battery-powered devices such as earplugs, implants, and cell phones, as well as electronic components like Static Random Access Memory (SRAM) and motherboards. Overall, the proposed low-energy 4-bit AVD circuit is a significant development in the DSP field, enabling more efficient and effective processing of digital signals.
Publisher
IOP Publishing
Subject
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