Yes. This is a DAC. I'll upload a photo now.R2R is a digital to analog converter in this context? What switching element do you use? I belive a high input impedance buffer is mandatory.
Why buffer? Resistors are linear. So long as the switches have much lower resistance than the resistors you should be fine treating an R-2R network as its Thevenin equivalent, a plain resistive source of impedance R. Of course heavily loading the network will add attenuation, buffering prevents that.R2R is a digital to analog converter in this context? What switching element do you use? I belive a high input impedance buffer is mandatory.
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