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INL,DNL measurement
use verilog-a to sim.those code i found from a post here...icant find link..
// VerilogA for TEST_ADC, inldnlmeasure, veriloga
// $Date: 2005/11/25
// $Revision: 0.0 $
// Static perfomance ADc mesure
// Accuracy depend from dLSB=S*T/LSB
// S -slope of ramp
// T -...
vcm ota
i've read lots of pipeline A/D papers.Vcm appears oftenly in comparators ,OTA and S/H circuit schematics.
and i'v got confused at the definition and magnitude of Vcm.
Is Vcm a fixed value under certain VDD??
or Vcm should be caculated form circuit??
has Vcm relateto OTA,S/H or other...
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