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Small Signal Amplification in Scanning Probe Microscopy

Authors: Gurkin N.V., Shakhnov V.A. Published: 15.03.2014
Published in issue: #2(71)/2008  
DOI:

 
Category: Radio Electronics  
Keywords:

While developing tunnel and atom-force probe microscopes, a necessity to amplify very small signals falling within picoampere range arises. A circuit of transimpedance amplifier with negative differential resistance is offered; its operation regimes are investigated.