**Why the delay in the flash type conversion occurs?**

The delay in the flash type conversion occurs due to priority encoders
and comparators in it.

**What are the
advantages of dual slope type A / D converter?**

Advantages

Low sensitivity to noise

Variation in its component value due to change in the temperature

**Why dual type analog
to digital converter is not used in the digital acquisition application?**

Due to large conversion time

**Describe the
applications of the dual slope type A / D converter**

Digital voltmeter, multi meter etc.

**Why the application of
dual slope type A / D converter is limited only for low to medium frequency?**

The dual slop type A / D conversion is limited
only for low to medium frequency due to slow conversion time.

**On which parameter the
accuracy of the Dual slope type A / D converter depends?**

** OR**

**Why the reference
voltage should keep precise in the dual slope type A / D converter?**

The accuracy of the dual slop type A / D
converter depends upon the reference input voltage.

**Is there any D / A
converter used in the voltage to frequency type DAC?**

** OR**

**Why the voltage to
frequency type ADC is simpler than any other type ADC?**

The voltage to frequency type ADC is simpler
than any other type ADC because it does not use DAC.

**What is the
application of voltage to frequency A / D converter?**

Application

Small signal has to be transmitted from transducer to control computer.

**Which type of analog
to digital converter has fixed conversion time?**

Successive approximation type ADC

**Which type of the ADC
is most widely used?**

Successive approximation type ADC

**What is output of the
integrator when the input is negative constant voltage?**

Positive ramp

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