Integrator Amplifier

Amplifiers

Integrator

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Graph of a typical Integrator Amp circuit (drawing redrawn by Ben Henry)

The circuit at right integrates the input voltage $V_{in}$ by using an Amplifier.

$V_{out}=\frac{-1}{R_1*C}\int V_{in}dt$

"$R_2$ ; Provides negative feedback for low output impedance needs. But it also distorts the output."¹

The use of an Integrator circuit is the opposite of a Differentiator circuit. In other words, If you have a "^^^" style input and you Differentiate it you will get a "square sine wave" output. If you run the "square sine wave" as the input to an Integrator circuit you will end up with the "^^^" for the output². The Resistor ($R_2$) Is used to provide feedback³ of the output DC voltage. Without this, circuit wouldn't perform as calculated because of the un-ideal conditions of real life.

Contributers

--Benjamin.henry 23:15, 10 January 2010 (UTC)

Readers

Greg Fong

• http://en.wikipedia.org/wiki/This_article_does_not_cite_any_references_or_sources.#Footnote_system
• I don't think I would capitalize amplifier, differentiator, differentiate or integrator.

Sources

¹ Quick Study "Electronics 1, Part 2"

² Practical Electronics for Inventors (p545, 2nd edition)

³ Feedback_in_Amplifiers