Determine the expected voltage levels at the output, Electrical Engineering

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The subsequent voltage-source multiplying DAC is to be utilized to convert the digital data stream "11" and "01" to an analog signal.  It has 2-bit inputs and hence is capable of converting two bits of digital data into analog voltage in a single cycle. Determine the expected voltage levels at the output?  (Digital control operates such that logical "1" makes a connection to Vcc and logical 0 makes a connection to ground.)

1264_Determine the expected voltage levels at the output.png

A)  - Vcc and - (3/2) Vcc

B)  - (3/2) Vcc and -Vcc

C)  - (1.5) Vcc and - (0.5) Vcc

D)  - Vcc and - (0.5) Vcc

 


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