NDLI: Chopper Modulators Using Current Conveyor Analogue Switches

Content Provider	Springer Nature Link
Author	Monpapassorn, Adisak
Copyright Year	2005
Abstract	The new CMOS Cowan, Ring, and Full-AM chopper modulators using current conveyor analogue switches are presented. The proposed chopper modulators use a square wave carrier current for controlling the transfer of a sine wave baseband voltage from nodes Y to nodes X, and the baseband currents from nodes X to nodes Z, of the current conveyors. The proposed chopper modulators are verified by simulating from the layout with a 0.5 μ m/level 49 MOSFET model of AMI obtained through MOSIS. With a supply voltage of ± 1.5 V, the operation range for the baseband voltage is between −300 mV and 300 mV. The operation range for the carrier current, bias currents for CCIIs, is ranged from ten to few hundred microamps. Using the carrier current of 20 μ A, the power consumption is not more than 0.8 mW in the operation range of the baseband voltage.
Starting Page	155
Ending Page	162
Page Count	8
File Format	PDF
ISSN	09251030
Journal	Analog Integrated Circuits and Signal Processing
Volume Number	45
Issue Number	2
e-ISSN	15731979
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2005-01-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	chopper modulators communication circuits current conveyor applications Electronic and Computer Engineering Signal, Image and Speech Processing Circuits and Systems
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Signal Processing Hardware and Architecture

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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