Determine the open-loop gain required for the residue amplifier of a two-step ADC necessary to keep the converter to within 1/2LSB of accuracy with resolutions of (a) 4 bits, (b) 8 bits, and (c) 10...

Determine the open-loop gain required for the residue amplifier of a two-step ADC necessary to keep the converter to within 1/2LSB of accuracy with resolutions of (a) 4 bits, (b) 8 bits, and (c) 10 bits.

Assume that a 4-bit, two-step Flash ADC uses two separate Flash converters for the MSB and LSB ADCs. Assuming that all other components are ideal, show that the first Flash converter needs to be more accurate than the second converter .Assume that V_REF
= 5 V.