ADS52J90: Performance of the ADS52J90

bhaaeddin alhomsi

Part Number: ADS52J90

I have a question regarding the performance of the ADC (DC and AC).

Do you know how to calculate the total error of the ADC (32 Channel mode 14bit (ADS52J90_32ch_SINE_4L_16x_14b_GBLCLKDIV1_FSDIV4_SYSREFDIV32_20x))?

Best Regards,

Bhaaeddin

over 3 years ago

0 Abhishek Vishwa1 over 3 years ago

TI__Expert 7090 points

Hi Bhaeeddin,

Can you clarify what do you mean by 'total error'?

Shown below are the performance metrics of the ADC, you can measure most of these like Gain Matching, Offset error, SNR, HD1 HD2 etc, using the HSDC pro software.

Thanks & regards,
Abhishek

0 bhaaeddin alhomsi over 3 years ago in reply to Abhishek Vishwa1

Prodigy 50 points

Hi,

I meant how to calculate the Total Unadjusted Error (TUE) is there any special rules for this ADC or just
sqrt (sq(Offset Error) + sq(Gain Error) + sq(DNL) + sq(INL))

/Bhaaeddin

0 Bellala Kalyan over 3 years ago in reply to bhaaeddin alhomsi

TI__Intellectual 1590 points

Hi Bhaaeddin,

You can use the formula you mentioned for calculating total Unadjusted error. You can find more details on this application note, ADC Performance Parameters Application Report.

Regards,

Kalyan

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ADS52J90: Performance of the ADS52J90