Revisit to Accurate ADC Testing with Incoherent Sampling Using Proper Sinusoidal Signal and Sampling Frequencies

EasyChair Preprint 6413

Abstract

This paper describes that the mature ADC testing method with a simple test system using the incoherent sampling and the standard algorithm of windowing and FFT with 4K-point data can measure the SINAD of our target 12-bit SAR ADC accurately by proper setting of the input and sampling frequencies, which is industry-friendly. We show the input sinusoidal signal and sampling clock frequency relationship for accurate testing of the ADC dynamic characteristics with an incoherent sampling method using a flat-top window. We have clarified the measured SINAD accuracy of the input signal frequency dependency for a fixed sampling frequency.

Keyphrases: ADC testing, FFT, Incoherent sampling, SINAD, flat-top window

@booklet{EasyChair:6413,
  author    = {Keno Sato and Takashi Ishida and Toshiyuki Okamoto and Tamotsu Ichikawa and Jiang-Lin Wei and Takayuki Nakatani and Yujie Zhao and Shogo Katayama and Shuhei Yamamoto and Anna Kuwana and Kazumi Hatayama and Haruo Kobayashi},
  title     = {Revisit to Accurate ADC Testing with Incoherent Sampling      Using Proper Sinusoidal Signal and Sampling Frequencies},
  howpublished = {EasyChair Preprint 6413},
  year      = {EasyChair, 2021}}