Flash ADC is the fastest analogue to digital converter (ADC). But it have low resolution and it required lots of comparators which makes it expensive .

Which is the fastest type of analogue to digital converter?

Flash converter is the fastest type of analogue to digital converter (ADC).

Which type of ADC gives high resolution?

Sigma Delta, successive approximation and integrating type analogue to digital converter gives very high resolution but they have slower speed.

Number of comparators required for an 8 bit flash ADC is: (1) 8 (2) 16 (3) 255 (4) 256

Number of comparators required for an 8 bit flash ADC is: 255

The ADC having highest conversion speed is (A) Dual-slope ADC (B) Successive approximation ADC (C) Flash ADC (D) Servo ADC

The ADC having highest conVersion speed is Flash ADC

ADC-Amplifier interface: In most data acquisition system analog to digital converter (ADC) is interfaced with the amplifier. There are different interface architectural schemes. Operational ... . The interaction between analog to digital converter and amplifier affects the system performance.

Describe the various blocks and their functions in pipelined ADC architecture.

Integrating or Dual Slope ADC

Operation: At the start of measurement the counter is reset to zero. So output of flip-flop is zero. This is applied to the switch control. The switch control now connects input voltage (Vin) to ... Then the data from counter is passed to the digital readout for display purpose.

List the types of ADCs. Explain working principle of any one type of ADC.

Types : 1. Successive approximation type A/D converter or Potentiometric type 2.Voltage to time or ramp type A/D converter 3.Voltage to frequency or integrating type A/D converter 4.Dual ... analog voltage and reference voltage are converted to ramp signals of different slopes by the integrator.

The number of comparators required in a 4 bit comparator type ADC is (A) 16 (B) 15 (C) 17 (D) 12

The number of comparators required in a 4 bit comparator type ADC is 15

A flash type ADC uses A) Counter B) Op—amps C) An integrator D) Flip flop