Digital Potentiometers from "Catalyst Semiconductor" are now cost-competitive with mechanical potentiometers and, for many applications, actually provide a lower total system cost. For decades, mechanical potentiometers have been universally employed in electronic circuitry
Headquartered in Santa Clara, California, Catalyst Semiconductor designs and markets analog, mixed-signal and non-volatile memory products, including Digitally Programmable Potentiometers (DPP(TM)), white and color LED drivers, DC/DC converters, LDO regulators, voltage supervisors, bus expanders, serial and parallel EEPROMs, Flash and NVRAM.