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Brute force computation for cheap log digital potentiometer

Brute force computation for cheap log digital potentiometer

Michael from Acidbourbon writes:

This article covers the attempt to build a digital logarithmic potentiometer out of two linear potentiometers. The benefits of this concept

  • Linear digital potentiometers can be easily procured and don’t cost much
  • There are IC packages with two or four modules inside anyway
  • The resulting logarithmic potentiometer is very flexible in terms of number of steps and steepness of the attenuation function

Full details at Acidbourbon homepage.

 

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