Digital to Analogue Converter (R-2R)

https://www.electronics-lab.com/article/digital-to-analogue-converter-r-2r/

The R-2R Digital-to-Analogue Converter is a type of data converter that transforms a digital binary number into an analog output signal that is proportionate to the value of the digital number using two precision resistors. The binary-weighted digital-to-analog converter, in contrast to the R-2R DAC, produces an analog output voltage that is the weighted sum […]