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A 5 bit D/A converter has a current output for a digital input of 10100. If an output current of 10 m A is produced, what will Iout be for a digital input of 11101?
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- 12.5 mA
- 13.5 mA
- 14.5 mA
- 15.5 mA
Correct Option: C
The digital input 10100 is the binary equivalent of 2010.
Since, Iout = 10mA, for this case proportionating factor is 0.5
i.e. I out = 0.5 × binary value.
Thus, binary input 11101 is equivalent ot 2910,
∴ Iout = 0.5 × 29 = 14.5 mA.
