Given such an 8-bit DAC with a reference voltage of 5V, what voltage does each bit represent?
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Challenge - MULTISIM Digital to Analog Conversion (DAC)
Exercises:
1. Given such an 8-bit DAC with a reference voltage of 5V, what voltage does each bit represent?
q = Vref =/28 -1 = 5V/255 = 19.60mV
2. Using the result found in Qu. 1, calculate the analogue output voltage of the DAC when a digital input of 3816 is applied.
3. Simulate the given DAC circuit in Multisim. For each binary input bit, a switch connects to +5V representing logic `1` or to ground representing logic `0`. Set the digital input to 3816, and determine the error between the analogue output calculated in Qu. 2 and the output voltage displayed on the multimeter.
4. If the output analogue voltage is 2.031V, determine the digital input (in binary and hex).
