Question

A Sample-and-Hold circuit is used to

• A. Store digital data
• B. Generate pulses
• C. Amplify signals
• D. Hold sample of input

Hint:

A Sample-and-Hold circuit is mainly used before an \[ \boxed{\text{Analog-to-Digital Converter (ADC)}} \] to keep the input voltage constant during conversion.

Answer 1

The Correct Option is D

Step 1: Recall the function of a Sample-and-Hold (S/H) circuit. A Sample-and-Hold circuit samples an analog input signal at a particular instant.

Step 2: Identify its purpose. After sampling, it maintains (holds) the sampled voltage constant for a certain period so that it can be processed, especially by an ADC. Hence, \[ \boxed{\text{Hold sample of input}} \] is the correct answer. Therefore, \[ \boxed{(D)} \] is the correct answer.