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Variable inverter

  1. Jan 30, 2013 #1

    Would it be possible to make an inverter, with the output dependant on a digital resistor?

  2. jcsd
  3. Jan 30, 2013 #2
    Define output.
  4. Jan 31, 2013 #3


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    Gold Member

    ThatNinthGuy, Welcome to Physics Forums!

    Here is one manufacturer of Integrated Circuits that makes inverting amplifiers with digital gain control:

    Programmable Gain Amplifiers

    Set your gain with a simple serial or parallel interface from 1 to over 4000V/V. Linear Technology's PGAs (programmable gain amplifiers) provide excellent gain accuracy, channel-to-channel matching specs, and low 1ppm/°C drift.

    For circuit ideas drawn from our vast library of datasheets, design notes and application notes, visit our new op amp circuit collection


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