PowerWise® Design University
Basics of A/D Converters
In an ideal case, ENOB will be equal to:
Resolution
Input frequency
Amplitude of input signal
Number of input signals
What will result in a better SNR?
Higher signal amplitude and higher frequency
Higher signal amplitude and lower frequency
Lower signal amplitude and higher frequency
Lower signal amplitude and lower frequency
In an ideal A/D Converter, the code to code transition points are exactly:
1 LSB apart
0.5 LSB apart
0.25 LSB apart
2 LSB apart
SNR is calculated by:
Shunting a capacitor or resistor across the input terminals
Adding an output resistance and measuring the current through that resistor
Shorting the input terminals
None of the above
