ADC

How many control lines are present in analog to digital converter in addition to reference voltage?

• 2

• 3

• 4

• 5

Which A/D converter is considered to be simplest, fastest and most expensive?

• Servo converter

• Counter type ADC

• Flash type ADC

• Successive Approximation ADC

How many clock pulses do a successive approximation converter requires for obtaining 4 bit digital output.

• 4

• 6

• 8

• 10

Which expression is used to find the number of comparators to construct a flash type ADC?

• 2n-1

• 2ⁿ-1

• 3ⁿ-1

• 4n-1

Identify the disadvantage of the flash analog-to digital converter (ADC)

• Simultaneous input need to be applied

• long conversion time is required

• large number of output lines is required to simultaneously decode the input voltage

• More number of comparators are required to represent a binary number