Hello,
In the datasheet of the INA220B-Q1, in table 5: ADC Settings, The conversion time is specified for the different mode/samples. My question is, when the averaging function is on, how many bits are used by the ADC?
Best regards,
Ezequiel
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Hello,
In the datasheet of the INA220B-Q1, in table 5: ADC Settings, The conversion time is specified for the different mode/samples. My question is, when the averaging function is on, how many bits are used by the ADC?
Best regards,
Ezequiel
Ezequiel,
Per the designer, the INA200 has a 16bit core ADC, which is available for conversion in 320mV range. In the 40mV range, only 12 bits are used for the conversion. When the sampling is very fast, the number of bits that are useful is 9, but the ADC still converts 12. As you average more of the faster readings, you will get less noisy numbers, up to 12 bits of useful data. Again, this is assuming you are in the 40mV range.
Let me know if you need anything else. Thank you for using TI products!
Jason Bridgmon