+1 vote
in Linear Integrated Circuits by (37.1k points)
Determine the maximum value of output current of the DAC in MC1408?

(a) 0.773×(Vref/R1)

(b) 0.448×(Vref/R1)

(c) 0.996×(Vref/R1)

(d) 0.224×(Vref/R1)

I had been asked this question by my school teacher while I was bunking the class.

I would like to ask this question from Current to Voltage Converter in portion Operational Amplifier Applications of Linear Integrated Circuits

1 Answer

0 votes
by (39.8k points)
The correct option is (c) 0.996×(Vref/R1)

Explore the finest explanation: The output current of DAC is the maximum when all the inputs are logic 1.

Therefore, Io= (Vref/R1)×(1/2+1/4+1/8+1/16+1/32+1/64+1/128/+1/256)=(0.996)×(Vref/R1).

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