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Found 3 results

  1. Hi, if I wish to connect external push-buttons to IO ports (on Arty Z7-20) is it necessary to use also resistors or it will be nu problem to connect VCC to GND (1 to 0)?
  2. On the PModR2R board with 10K and 20K resistors what is the precision of the resistors? Precision matters because I am trying to produce an accurate DAC with low noise. Thanks!
  3. Greetings, We built an R2R DAC. Later I found the schematic at https://www.digilentinc.com/Data/Products/PMOD-R2R/PmodR2R_sch.pdf. My question is: Should the 200 Ohm internal resistors going in to the PMODs figure in the R2R values. We used 1.8k and 1k resistors, figuring on including the 200 Ohm resistors to make 2k. The pdf schematic above uses 10k and 20k resistors. Any comments? Opinions? Thanks, John