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
Switched Capacitor Type DAC
The switching of the capacitor is done by two phase clock in the switched capacitor type DAC. When the phase Ø1 is at high state, all the capacitors are switched to ground and discharged. Similarly when the phase Ø2 is at high state, all the capacitors are switched to reference voltage.
% Resolution = 1 / ( 2N – 1)
Where N = Number of bit
Therefore, resolution of the 4 – bit DAC is
%
Resolution = 1 / ( 24 – 1)
= 1 / 15
= 6.67%
Digital Quantity
It
is quantity that has only discrete values. It is expressed in the digital form.
What is meant by analog quantity?
Analog Quantity
It is quantity which can take any value over a continuous range of values. E.g. temperatures, pressure, position, speed etc.
