Physics · Electronics
A 2-bit simultaneous (flash) analog-to-digital (A/D) converter operates in the voltage range 0 to V 0 . The outputs of the comparators are C 1 , C 2 , and C 3 with reference inputs V 0 /4, V 0 /2, and 3V 0 /4, respectively. The logic expression for the output corresponding to the least significant bit (LSB) is:
- 1C 1 C 2 C 3
- 2C 2 C 3 + C 1
- 3C 1 C 2 + C 3✓
- 4C 2 C 3 + C 2
Correct answer
C 1 C 2 + C 3
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