aperture error due to clock jitter

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pankaj jha

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hello all

can anyone explain why the maximum allowed uncertainty in sampled voltage is only 0.5*LSB and not 1*LSB???? an illustration might be usefull
 

Pick any voltage. If there are no accuracy errors, the resolution determines the closest most accurate reading within 1/2 bit

It is the same as converting any real number, X to an integer
e.g. X- (INT(X+0.5) <0.5 ( for any number X>0 )
 

Thanks. .. but I am confused on why the error has been chosen to be half LSB and not 1LSB.. are you assuming a a mid-tread or mid-rise transfer function of the ADC...
Kindly elaborate...
 

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