Question

Arrange ADC types in ascending order of conversion time: 
A. Successive approximation 
B. Dual ramp 
C. Counter method 
D. Simultaneous (Flash)

• A. C, B, D, A
• B. B, C, D, A
• C. B, C, A, D
• D. C, B, A, D

Hint:

Flash ADC is fastest; dual ramp is slowest.

Answer 1

The Correct Option is C

Concept: ADC speed ranking:
• Dual ramp → slowest
• Counter → slow
• Successive approximation → medium
• Flash → fastest

Step 1: Arrange ascending (slow → fast) \[ B \rightarrow C \rightarrow A \rightarrow D \] \[ \therefore \text{Correct answer is (C)} \]