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BQ25157: ADC conversion time, per channel or agregate?

Part Number: BQ25157
Other Parts Discussed in Thread: BQ25155, BQ25150,

Tool/software:

The BQ25157 (similar to BQ25150, BQ25155) has a built in ADC.  The conversion time, tadc_conv, in high resolution mode is listed at 24 ms.

Is that time per channel or for converting all 7 channels?

That is, if you enabled converting all channels, is the total conversion time to do all of them 24 ms or 7 x 24 ms?

Also, when does the interrupt fire, after the first conversion only, after each conversion, or after all 7 conversions are done?

The DS is not clear on this at all.