Design of a flash analog-to-digital converter using threshold inverter quantization (TIQ) technique
The analog-to-digital converter (ADC) is an essential part of system-on-chip (SoC) products because it bridges the gap between the analog physical world and the digital logical world. In the digital domain, low power and low voltage requirements are becoming more important issues as the channel leng...
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sg-ntu-dr.10356-403602023-07-07T17:08:08Z Design of a flash analog-to-digital converter using threshold inverter quantization (TIQ) technique Murni Hasan. Siek Liter School of Electrical and Electronic Engineering Centre for Integrated Circuits and Systems DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits The analog-to-digital converter (ADC) is an essential part of system-on-chip (SoC) products because it bridges the gap between the analog physical world and the digital logical world. In the digital domain, low power and low voltage requirements are becoming more important issues as the channel length of MOSFET shrinks below 0.25 sub-micron values. This project implements the technique called Threshold Inverter Quantization (TIQ) in the design of a flash Analog-to-Digital Converter (ADC). This TIQ technique uses CMOS inverter as comparator in the ADC. Threshold voltage (Vm) of the inverters is used as reference voltage of the comparator. This threshold voltage on CMOS inverter is changed accordingly by transistor sizing on both PMOS transistor and NMOS transistor. However, CMOS inverter is susceptible to the process and the temperature variation. A variation in the temperature or in the process would make the threshold voltage change. Thus, this project eventually presents another design whose comparator uses a self-tuned inverter. This self-tuned inverter is insensitive to the temperature variation as well as the process variation compared to the CMOS inverter. Detailed analysis is performed for both designs to compare the performance between these two designs. Bachelor of Engineering 2010-06-15T02:25:29Z 2010-06-15T02:25:29Z 2010 2010 Final Year Project (FYP) http://hdl.handle.net/10356/40360 en Nanyang Technological University 66 p. application/pdf |
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DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits Murni Hasan. Design of a flash analog-to-digital converter using threshold inverter quantization (TIQ) technique |
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The analog-to-digital converter (ADC) is an essential part of system-on-chip (SoC) products because it bridges the gap between the analog physical world and the digital logical world. In the digital domain, low power and low voltage requirements are becoming more important issues as the channel length of MOSFET shrinks below 0.25 sub-micron values.
This project implements the technique called Threshold Inverter Quantization (TIQ) in the design of a flash Analog-to-Digital Converter (ADC). This TIQ technique uses CMOS inverter as comparator in the ADC. Threshold voltage (Vm) of the inverters is used as reference voltage of the comparator. This threshold voltage on CMOS inverter is changed accordingly by transistor sizing on both PMOS transistor and NMOS transistor.
However, CMOS inverter is susceptible to the process and the temperature variation. A variation in the temperature or in the process would make the threshold voltage change. Thus, this project eventually presents another design whose comparator uses a self-tuned inverter. This self-tuned inverter is insensitive to the temperature variation as well as the process variation compared to the CMOS inverter. Detailed analysis is performed for both designs to compare the performance between these two designs. |
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Siek Liter |
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Siek Liter Murni Hasan. |
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Final Year Project |
author |
Murni Hasan. |
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Murni Hasan. |
title |
Design of a flash analog-to-digital converter using threshold inverter quantization (TIQ) technique |
title_short |
Design of a flash analog-to-digital converter using threshold inverter quantization (TIQ) technique |
title_full |
Design of a flash analog-to-digital converter using threshold inverter quantization (TIQ) technique |
title_fullStr |
Design of a flash analog-to-digital converter using threshold inverter quantization (TIQ) technique |
title_full_unstemmed |
Design of a flash analog-to-digital converter using threshold inverter quantization (TIQ) technique |
title_sort |
design of a flash analog-to-digital converter using threshold inverter quantization (tiq) technique |
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2010 |
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http://hdl.handle.net/10356/40360 |
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1772825171847020544 |