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Low power design techniques for analog circuit

Low power design techniques for analog circuit / Faez Hazwan Zainudin
Pembanding adalah litar analog yang membandingkan dua insyarat analog dan menghasilkan keluaran digital daripada perbandingan tersebut Permanding berkuasa rendah dan berkelajuan tinggi amat penting bagi memepercepatkan pertukaran data analog kepada data digital dalam masa yg sama beroperasi dalam kuasa yang rendah. Pengunaan litar kusa rendah amat menjadi perhatian bagi alat-alat elektronik lebih-lebih lagi alat elektronik yang menggunakan bateri untuk beroperasi. Jadi, permintaan alat elektronik berkuasa rendah semakin menjadi sambutan tanpa menjejaskan pretasinya. Dalam kajian ini pembanding konvensional, pembanding dengan MTSCStack & DTTS, pembanding dengan bulk-driven telah direka dan disimulasi dengan mengunakan perisian Silterra cadence teknologi 0.13 μm process CMOS. Matlamat kajian ini adalah untuk mencari dan membina dengan mengambungkan teknik-teknik tersebut bagi menghasilkan pembanding beroperasi dalam kuasa yang rendah tanpa menjejaskan prestasi sedia ada. Teknik MTSCStack mengurangkan arus bocor dalam mod aktif dan mengekalkan logik asal. Manakala DTTS mengurangkan arus bocor tanpa menjejaskan prestasi litar tersebut dan teknik bulk-driven, keperluan VTH dikeluarkan daripada laluan isyarat apabila insyarat input dijadikan pada bulk. Di bawah keadaan ini, kejatuhan voltan yang lebih rendah diperlukan seluruh input and keluaran terminal pemacu. Pembanding dicadang menunjukkan keputusan 13.6 mV bagi mengimbangi, 25.8 mV bagi resolusi, 19.3 gandaan voltan, 3.46 ns bagi perambatan lengah, 7.71 μW bagi kuasa statik dan 16.44 μW bagi kuasa dinamik. _______________________________________________________________________________________________________ Analog comparator is a circuit that compares two analog signal and produce a digital output from the comparison. Low power consumption and high speed comparator is very important to exchange the analog signal to digital signal at the same time can operate in low power. Use of low power circuit is such a demand for electronic devices even more for electronic devices use batteries to operate. So, designing of low power consumption and high speed comparator become an attention without affecting the performance. In this study, the conventional comparator, comparator with MTSCStack & DTTS, and comparator with bulkdriven has been designed and simulated using Silterra Cadence technology software using 0.13 μm CMOS process. The aim of this study is to find and build the combination of these techniques to produce a comparator that can operate in low power without compromising existing performance. The function of MTSCStack technique is to reduce leakage current in active mode and at the same time retain the original state. While, DTTS is reduce leakage current without affecting the performance of the circuit and bulk-driven technique is be able to remove the need of VTH from the signal path when the input signal is applied to bulk. Under this condition, the voltage drop across is required across input and output terminals of the drive. Proposed comparator shows result of 13.6mV for offset, 25.8mV for resolution, 19.3 for voltage gain, 3.46ns for propagation delay, 7.71μW for static power and 16.44 μW for dynamic power.
Contributor(s):
Faez Hazwan Zainudin - Author
Primary Item Type:
Final Year Project
Identifiers:
Barcode : 00003107021
Accession Number : 875007143
Language:
English
Subject Keywords:
low power circuit; electronic devices; Silterra Cadence technology software
First presented to the public:
6/1/2017
Original Publication Date:
4/18/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Electrical & Electronic Engineering
Citation:
Extents:
Number of Pages - 74
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-04-18 15:11:02.985
Date Last Updated
2019-01-07 11:24:32.9118
Submitter:
Mohd Jasnizam Mohd Salleh

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