My Questions:

1. Wave Form Sampling

Data sheet says: 20-bit with upper 4-bit as sign extension.

Does the ADC produce 20-bit value as Sign-Magnitude from; where lower 20-bit are always positive and upper 4-bit indicates sign.

The lower 20-bit is negative if the upper 4-bits are all 1s; else lower 20-bit is positive.

or the ADC produces 2's compliment code with upper 4-bit carries negative value of -2x2^20 and lower 20-bit carries positive vlaues

2. What is the full scale of the ADC?

Regards,

Golam Mostafa

Hi Mostafaq,

Regards,

Dlath