Technical Interviews: Excel with Ease

Block 9

Data Conversion Circuits

1. How do you differentiate between resolution and accuracy of an A/D converter?
2. If an A/D converter has a full-scale input analog voltage range of 10 volts and it is a 12-bit converter, then what do you think is the resolution in volts?
3. How many types of A/D converters are you aware of? Name them.
4. Arrange all the different types of A/D converters in the descending order of their conversion times.
5. Arrange the A/D converter types in increasing order of circuit complexity.
6. Why do we not have flash-type A/D converters for larger number of bits like 16 or 18? Or do you think there is no problem in having a flash-type A/D converter with any number of bits?
7. Do you think conversion time of an A/D converter depends upon ...