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LTC6244 Low Noise AC Difference Amplifier

Low Noise AC Difference Amplifier

Piezoelectric and LVDT (Linear Variable Differential Transformer) sensors provide differential ac output signals. In addition to a standard difference amplifier a secend amplifier can be used as a dc servo amplifier to force an output dc bias potential in single supply applications. This difference amplifier is dc coupled but acts as a high pass network for ac signals with a lower corner frequency set by R5 and C3 of the dc servo amplifier.




LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

To launch a ready to run LTspice demonstration circuit for this part:

  • Step 1: If you have not installed LTspice on this computer, download and install LTspice
  • Step 2: Once LTspice is installed, click on the link(s) below to launch the simulation
  • Step 3: If LTspice does not automatically open after clicking the link above, you can instead run the simulation by right clicking on the link and selecting "Save Target As." After saving the file to your computer, start LTspice and open the demonstration circuit by selecting 'Open' from the 'File' menu

To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.

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