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A 4-bit R/2R digital-to-analog (DAC) converter has a reference of 5 volts. What is the analog output for the input code 1010: 

(1) 0.3125 V (2) 3.125 V (3) 0.78125 V (4) –3.125 V

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A 4-bit R/2R digital-to-analog (DAC) converter has a reference of 5 volts. 3.125 V is the analog output for the input code 1010.

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