Title page for ETD etd-010907-114544

Document Type thesis

Author Name Colonero, Curtis Benson

URN etd-010907-114544

Title Noise Analysis and Simulation of a Sub-Pixel Analog to Digital Voltage-To-Frequency Converter for use with IR Focal Plane Arrays

Degree MS

Department Electrical & Computer Engineering

Advisors
Brian M. King, Advisor
John A. McNeill, Committee Member
Fred J. Looft, Department Head

Keywords
Sub-Pixel
A/D
Voltage-To-Frequency
Converter
Noise Analysis
Simulation
IR
Focal Plane Array
FPA

Date of Presentation/Defense 2007-01-05

Availability unrestricted

Abstract
The performance of a dedicated A/D converter located beneath each pixel is explored in this thesis. Specifically, a voltage to frequency converter coupled with a direct injection amplifier designed for use with an IR focal plane array is analyzed. This versatile implementation of a Readout Integrated Circuit can be found applicable to a wide variety of imaging technologies.
Noise performance of the conversion system is theoretically calculated, and is supported by SPICE simulations using valid CMOS SPICE models. It is shown that a 10 transistor sub-pixel voltage to frequency analog to digital converter will produce noise that is less than the input shot noise. Design considerations will be addressed to ensure continued performance as the scale of the imagers increase to large format arrays.

Files
CColonero.pdf

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Document Type	thesis
Author Name	Colonero, Curtis Benson
URN	etd-010907-114544
Title	Noise Analysis and Simulation of a Sub-Pixel Analog to Digital Voltage-To-Frequency Converter for use with IR Focal Plane Arrays
Degree	MS
Department	Electrical & Computer Engineering
Advisors	Brian M. King, Advisor John A. McNeill, Committee Member Fred J. Looft, Department Head
Keywords	Sub-Pixel A/D Voltage-To-Frequency Converter Noise Analysis Simulation IR Focal Plane Array FPA
Date of Presentation/Defense	2007-01-05
Availability	unrestricted
Abstract The performance of a dedicated A/D converter located beneath each pixel is explored in this thesis. Specifically, a voltage to frequency converter coupled with a direct injection amplifier designed for use with an IR focal plane array is analyzed. This versatile implementation of a Readout Integrated Circuit can be found applicable to a wide variety of imaging technologies. Noise performance of the conversion system is theoretically calculated, and is supported by SPICE simulations using valid CMOS SPICE models. It is shown that a 10 transistor sub-pixel voltage to frequency analog to digital converter will produce noise that is less than the input shot noise. Design considerations will be addressed to ensure continued performance as the scale of the imagers increase to large format arrays.
Files	CColonero.pdf