Question

4. A team mate is working the video link. He needs an ADC-DAC combination. What do you recommend to him? What elements would you advise the team mate to add to the ADC-DAC combination? Why? Draw the final circuit.

Answer 1

By using duccessive apposimation are can easily convert any andleg values into digital values dethout any big changes in the values and also it the very easy way to convert it. One method of addressing the digital Samp ADC's short coming is the so called Succesive aporimation ADC. The only change nothies design is a very peeeal counter collend is known as successive approximation regista. the cedhantage of this corkenation is counting strategy is much faster results The DAC outreet converges on the andog enpeat signal impact in much loga steps than euth o to full count sequence of a regular counter

Successue appeumaton method. Vad rrr P SAR IDAL SRG CS anned with

the figure shows that SAR is generally coupable of outperting the binary number in serial cone bit at a tione format, thus derinaling need for a shift register Analong tignol.comput) Digital art pat The succesuie approximation seguita is Unitialized so that the most digne hcant (MSB) as agroal to l. the code is fed into the DAC, cebich then chopplies Andos equivalent of the digital Code into the Comparato circuit A Companion with the sampled expert notage.