Computer · Data Converters
A 4-bit unipolar DAC with a 10V reference voltage is fed to the input of a comparator whose threshold is set to 7.5V. When the DAC counts up from 0 and reaches 8 (binary 1000), the comparator wrongly indicates a threshold crossing. It is found that one of the DAC input bits is stuck-at-1. Which bit is stuck-at-1?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1B0 (LSB)
- 2B1
- 3B2✓
- 4B3 (MSB)
Correct answer
B2
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