Measuring SNR of ADC

Discussion in 'Test & Measurement Forum' started by Viktor Sivertsson, Dec 21, 2018.

  1. Viktor Sivertsson

    Thread Starter New Member

    Dec 21, 2018
    1
    0
    Hi! I have been given a task to measure the SNR of a microcontroller ADC. The task is as written below:

    - Signal to Noise Ratio measurement over the full bandwidth 0-10Hz with an amplitude see maximum level voltage range specified above (2.5V)
    SNR = 20log^10(sqrt(1,5)*2^n) for non-oversampled systems, Fs=2Bandwidth.
    SNR = 20log^10(sqrt(3)*2^(n-1)*fclk/ftest) for oversampled systems, fclk = sample freq, ftest= test frequency.
    -Histogram of Integral Non Linearity (INL) and DIfferential Non Linearity (DNL).

    I am quite lost how I'm supposed to measure this. Does anyone have a few tips?

    Best regards,
    Viktor
     
  2. ericgibbs

    Moderator

    Jan 29, 2010
    8,527
    1,713
    hi Viktor,
    Welcome to AAC.
    Perhaps this PDF may give you a starting point.
    E
     
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