ADS127L11: wideband filter frequency response

Yuto Kitamura

Part Number: ADS127L11

Hi team,

I want to compare the frequency response of the wide filter between OSR:32 and 64.

But I can only see Figure 8-10 and Figure 8-11 (normalized by each fdata and fmod).

Do you have the data for OSR32 normalized by fmod and OSR64 normalized by fdata?

Best regards,

Yuto

0 Keith Nicholas over 2 years ago

Hi Yuto-san,

Please give me a few days to dig up the data.

I assume you want data similar to Figure 8-10 for OSR=32 and data similar to Figure 8-11 for OSR>=64?

Regards,
Keith Nicholas
Precision ADC Applications

0 Yuto Kitamura over 2 years ago in reply to Keith Nicholas

Hi Keith,

Thank you!

Yes, I want what you are saying.

Best regards,

Yuto

0 Keith Nicholas over 2 years ago in reply to Yuto Kitamura

Hello Yuto-san,

I am still working on getting some additional data. I will follow-up tomorrow with more details.

Regards,
Keith

+1 Keith Nicholas over 2 years ago in reply to Keith Nicholas

Hello Yuto-san,

Here is the data plot from Figure 8-11 scaled similar to Figure 8-10 (Fin/Fdata) for the OSR=32 Filter.

Unfortunately, we do not have data available for Fin/Fmod and OSR=64. It should have a response as follows:

0.5<Fin/Fdata<1, -106dB attenuation

1<Fin/Fdata<1.5, -80dB attenuation

1.5<Fin/Fdata<2, -106dB attenuation

2<Fin/Fdata<2.5, -75dB attenuation

I do not have a timeline when more precise measurements will be available. If this is very important, please let me know and we can prioritize.

Thanks,

Regards,
Keith

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