Video: Basics of R-2R Resistor Networks for Digital to Analog Conversion

[w2aew]

Here's a new video that presents the basics of R-2R resistor "ladder" networks.  It shows how Thevenin equivalents and Superposition can be used to easily analyze the operation of the circuit as a simple digital to analog converter (DAC).  Some practical examples are shown using an Arduino and a homemade R-2R circuit.