Chapter 11 Op-Amp Applications - Webstaff.kmutt.ac.th
Chapter 11 Op-Amp Applications - Webstaff.kmutt.ac.th
Chapter 11 Op-Amp Applications - Webstaff.kmutt.ac.th
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Voltage Buffer<br />
Any amplifier wi<strong>th</strong> no gain or loss is called a unity gain<br />
amplifier.<br />
The advantages of using a unity gain amplifier:<br />
• Very high input impedance<br />
• Very low output impedance<br />
Realistically <strong>th</strong>ese circuits<br />
are designed using equal<br />
resistors (R 1 = R f ) to avoid<br />
problems wi<strong>th</strong> offset<br />
voltages.<br />
Electronic Devices and Circuit Theory, 10/e<br />
Robert L. Boylestad and Louis Nashelsky<br />
7<br />
Copyright ©2009 by Pearson Education, Inc.<br />
Upper Saddle River, New Jersey 07458 • All rights reserved.
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