Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Nanotransistors Improve Quality of Operational Amplifiers

Abstract:
Iranian researchers at Ferdowsi University of Mashhad proposed principles of optimal design of operational amplifiers (op-amps) by applying nanotransistors.

Nanotransistors Improve Quality of Operational Amplifiers

Iran | Posted on December 22nd, 2009

Hamidreza R. Dehsorkh has worked in this field of science, managing to figure out some optimal conditions for designing nanotransistor-based novel op-amps.

"Operational amplifiers are popular devices widely used in analogue electronics. In most cases, a precise model of its settling behavior is needed to optimize an op-amp," he said in an interview with the news service of Iran Nanotechnology Initiative Council (INIC).

"Since folded cascode circuit is commonly used in amplifier applications, our calculations are based on it. For a step input, current relations in op-amp junctions were derived and velocity-saturation model for MOS transistors was applied," Dehsorkh emphasized.

He solved the set of differential equations and obtained a relation for nonlinear settling of the nano-scale amplifier (assuming that the amplifier is bipolar and oscillation damping exists in case of linear settling). Finally, by applying boundary conditions and their consistency, a general relation for settling was postulated.

"In addition to the analysis of the settling behavior, we managed to present a correlation for settling (including both linear and nonlinear) of the mentioned op-amps," the Iranian researcher added

"Optimizing analogue to digital converters with respect to their power consumption is highly valuable particularly in telecommunication industries. It would lengthen battery life and reduce costs and device volume and weight", Dehsorkh mentioned.

####

For more information, please click here

Copyright © FARS

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Graphene and quantum dots put in motion a CMOS-integrated camera that can see the invisible May 29th, 2017

Ag/ZnO-Nanorods Schottky diodes based UV-PDs are fabricated and tested May 26th, 2017

New metamaterial-enhanced MRI technique tested on humans May 26th, 2017

Controlling 3-D behavior of biological cells using laser holographic techniques May 26th, 2017

Nanoelectronics

Oddball enzyme provides easy path to synthetic biomaterials May 17th, 2017

Racyics Launches ‘makeChip’ Design Service Platform for GLOBALFOUNDRIES’ 22FDX® Technology: Racyics will provide IP and design services as a part of the foundry’s FDXcelerator™ Partner Program May 11th, 2017

Researchers “iron out” graphene’s wrinkles: New technique produces highly conductive graphene wafers April 3rd, 2017

A big leap toward tinier lines: Self-assembly technique could lead to long-awaited, simple method for making smaller microchip patterns March 27th, 2017

Announcements

Graphene and quantum dots put in motion a CMOS-integrated camera that can see the invisible May 29th, 2017

Ag/ZnO-Nanorods Schottky diodes based UV-PDs are fabricated and tested May 26th, 2017

New metamaterial-enhanced MRI technique tested on humans May 26th, 2017

Controlling 3-D behavior of biological cells using laser holographic techniques May 26th, 2017

Battery Technology/Capacitors/Generators/Piezoelectrics/Thermoelectrics/Energy storage

Graphene-nanotube hybrid boosts lithium metal batteries: Rice University prototypes store 3 times the energy of lithium-ion batteries May 19th, 2017

Self-healing tech charges up performance for silicon-containing battery anodes May 15th, 2017

Gas gives laser-induced graphene super properties: Rice University study shows inexpensive material can be superhydrophilic or superhydrophobic May 15th, 2017

Is this the 'holey' grail of batteries? May 12th, 2017

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project