In an R-2R ladder D/A converter, the input resistance is

In an R-2R ladder D/A converter, the input resistance is 

1. Not same for all digital inputs 2. R for each input 3. 2R for each input 4. 3R for each input 
by

1 Answer

Answer :

In an R-2R ladder D/A converter, the input resistance is 3R for each input 

by

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