In the realm of instrumentation, signals coming from sensor outputs can be quite weak, and in such cases some signal enhancement clearly may be desirable. That is, signal amplification is needed. Indeed, amplification is one of the fundamental manipulations that can be performed on a signal. Amplifiers have played a key role throughout the history of electronics, appearing first in vacuum tube form, then as transistor-based designs, and most recently packaged into integrated circuits.


Input Voltage Load Resistance Operational Amplifier Input Resistance Corner Frequency 
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Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • James A. Blackburn
    • 1
  1. 1.Department of Physics and ComputingWilfrid Laurier UniversityWaterlooCanada

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