A Simple 1-Wire® DAC

Abstract: Connecting the outputs of a 1-Wire addressable switch (DS2408) to a resistor network allows the 1-Wire interface to control a simple DAC. This idea is illustrated by the presentation of an LED-brightness controller.
Maxim > App Notes > 1-Wire Devices

Keywords: 1-Wire switches, 1-Wire interface, current mirrors, D/A converters, DACs, resistor networks Oct 19, 2009

APPLICATION NOTE 4627
A Simple 1-Wire DAC
By: Bernhard Linke


Abstract: Connecting the outputs of a 1-Wire addressable switch (DS2408) to a resistor network allows
the 1-Wire interface to control a simple DAC. This idea is illustrated by the presentation of an LED-brightness
controller.

A similar version of this article was published on September 29, 2009 on the Planet Analog website.

Among devices available with a 1-Wire interface, the best known are memories, temperature sensors, battery
monitors, and addressable switches. One-Wire ADCs are also available, but no 1-Wire DACs. You can, however,
build a simple 1-Wire DAC using addressa