ADS8920B: INL temp drift

Iwata Etsuji

Expert 6400 points

Part Number: ADS8920B

Hi team,

Could you please share the temp drift data for ADS8920B INL (hopefully std.dev or histogram)?

Best regards,
Iwata Etsuji

over 6 years ago

0 Keith Nicholas over 6 years ago

TI__Guru 52420 points

Hi Iwata-san,

Figure 11 in the datasheet provides INL change over temperature. Typical change is less than 0.1LSB over the full temperature range. Maximum INL is +/-0.5LSB over -40C to 125C.

I am not sure if we have any additional data, but will check.

Thanks,

Keith Nicholas
Precision ADC Applications

0 Iwata Etsuji over 6 years ago in reply to Keith Nicholas

TI__Expert 6400 points

Hi Keith-san,

Thank you for your support.

Can we consider 0.1LSB/-40C - 125C as the standard deviation for temp dependency of INL?

Best regards,
Iwata Etsuji

0 Keith Nicholas over 6 years ago in reply to Iwata Etsuji

TI__Guru 52420 points

Hello Iwata-san,

Yes, as a conservative number, I would consider 0.1LSB as a standard deviation. Please note that the minimum/maximum INL over the full operating temperature range of -40C to 125C is +/-0.5LSB.

Regards,
Keith

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ADS8920B: INL temp drift