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Example 4
Work through this simple example to help you better understand this formula and what the DAC does.
  1. Given:

    DAC = DAC121S101

    DAC Gain Factor = 1

    DAC Supply Voltage = 3.0V

    Desired Output Voltage = 1.8750V
  1. Question:

    What is the required DAC Input Code in binary?
  1. Since the ratio of the reference to the desired output is the sum of binarily weighted integers, the exact output desired can be obtained, with an ideal DAC, with no error.
It's True!
It's True!
You can not have a fractional input code.
Tip
Tip
You will need to look up the DAC data sheet to determine the reference voltage.
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