DESIGN OF LOW-POWER COLUMN-PARALLEL ADC FOR IMAGING APPLICATIONS

Project Title

DESIGN OF LOW-POWER COLUMN-PARALLEL ADC FOR IMAGING APPLICATIONS

Project Area of Specialization Electrical/Electronic EngineeringProject Summary

Our project is about designing of low power ADC for image application. As image sensor is used in camera of mobiles and laptop. And ADC is used with image sensor to convert image signal into digital signal. And now technology is trying to make portable devices. ADC is main block of image processing devices if this block consumes low power battery size of device will decreases. Main block of image processing devices is imaging sensor also consume high power. So technology is working for low power dissipation in these two blocks. For reduction of power consumption in ADC and image sensor CMOS technology is used. CMOS is transistor consists on PMOS and NMOS type transistor and it consumes low power. In ADC comparator is main block which consume high power so now by using CMOS in comparator block power dissipation is reduce. And in image sensor CMOS is used row and column wise selection of pixel sensor and it act as switch. If these both blocks consume low power so the size of battery is reduce and timing is increases, device will be portable.

Project Objectives

power Consumption comparison between digital pixel sensor and column parallel ADC

Project Implementation Method

Conversion of photons into electron

Collection of charges as signal

Move signal to detection node

Conversion of signal charge into electrical signal

conversion of electrical signal to digital signal

Benefits of the Project

project can be used in low power image processing devices.some of thses devices are mention below. 

Measurements/Data Acquisition

Control  system

Cell phones

Laptop

Video devices  

3D imaging

 biometrics

Technical Details of Final Deliverable

this project consist on following components.

Micro lenses

RGB colour filters

photodiode

CMOS transistor switch

Gain control structure

Ramp generator

Comparator

Counter

Flip flop

Final Deliverable of the Project Software SystemCore Industry SecurityOther Industries Others Core Technology OthersOther TechnologiesSustainable Development Goals Affordable and Clean EnergyRequired Resources

Item Name	Type	No. of Units	Per Unit Cost (in Rs)	Total (in Rs)
			Total in (Rs)	9600
copies	Miscellaneous	3	3200	9600