ruby1212
Junior Member level 3

Hello all;
It is well known that the linearity is very important when testing an ADC with a histogram approach using a saturated ramp......My question is: When using a feedback loop (known also as servo loop), is the linearity of the stimulus still important ? In the servo loop configuration the output of the ADC is made stable around a desired transition edge, then the "voltage" of this tarnsition edge is measured at the input of the ADC,
It is well known that the linearity is very important when testing an ADC with a histogram approach using a saturated ramp......My question is: When using a feedback loop (known also as servo loop), is the linearity of the stimulus still important ? In the servo loop configuration the output of the ADC is made stable around a desired transition edge, then the "voltage" of this tarnsition edge is measured at the input of the ADC,