[Solved] The fastest type of Analog to Digital converter is (2024)

For n-bit conversion, the conversion time for different ADC are:

Countertype ADC: (2n– 1) Tclk

Successive approx.time ADC: n Tclk

Flashtype ADC: Tclk

(Flash Type ADC is also known asParallel comparator type)

Dual slopeADC: (2n+1– 1) Tclk

The fastest type of Analog to Digital converter is theFlash type /Parallel comparator type.

Important points:

• Counter type ADC and successive approximate ADC uses DAC
• Counter type ADC uses linear search and successive approximation type ADC uses binary search
• Ring counter is used in successive approximation type ADC
• Flash type ADC is the fastest ADC
• Flash type ADC requires no counter
• For an n-bit ADC, flash type ADC requires (2n– 1) comparators
• Dual slope ADC is the most accurate.