Digital Signal Processing - Technical MCQs

Q1:

Which A/D conversion method has a fixed conversion time?

A Single-slope analog-to-digital converter

B Dual-slope analog-to-digital converter

C Digital-ramp analog-to-digital converter

D Successive-approximation analog-to-digital converter

ANS:D - Successive-approximation analog-to-digital converter

Successive approximation method requires n clock cycles for n bit conversion. Slope based methods require variable number of clock cycles depending on the input voltage.