SAR AD converter input signal

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kovibb

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Hi all,

Please i need help. I have DC signal 0,835-2,705V towards ground on input and 12 bit SAR converter with single ended or differential inputs supplyed by 5V with posssibility adjust Vref. Please how can I design this all thus i dont lose any bits?

Thanks
 

"How could I configure my ADC and my circuit to get this voltage as the dynamic input range of ADC." should be your main motive. I mean the voltage range you have given should cover all the possible sampling range of ADC.

These operations are called signal conditioning. You can search literature. But first of all you should read the datasheet of ADC really carefully.

If there is anything else I can help, I'll be happy to.
 
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    kovibb

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Knowing which ADC is being used might help... it sounds like it might be flexible.
 

thank you for advices. "How could I configure my ADC and my circuit to get this voltage as the dynamic input range of ADC." This is exactly question which i mean but i didnt know english equivalent of this problem. now i know because of you. thank you
 

FoxyRick said:
Knowing which ADC is being used might help... it sounds like it might be flexible.
Click to expand...

for example this ads7817. I still no idea how i can solve this problem, because i havent created any negative reference up to now. DO you know about same simple solution? thank for advices
 

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