The TPL0501 device is a single-channel, linear-taper, digital potentiometer with 256 wiper positions. This device can be used as a three-terminal potentiometer or as a two-terminal rheostat. The ...

The volume control of this amp uses the DS1868 dual digital pot IC in place of the usual 10K ... provided with this build outputs volume as a linear function, it would be trivial to implement ...