Part Number: ADC12J2700 We are seeing bit 2 in the CAL_STAT register (0x5b) toggle occasionally if we poll that register repeatedly. We're operating with background calibration enabled, and generally read a value of 0x09 from the register, but 30-50% of the time we instead read back 0x0d. Questions: - Is this expected behavior? - What is the reason for the bit toggling? We noticed this while debugging unit-to-unit variations in ADC noise floor. With the input terminated at the ADC inputs, we're seeing a 4-5 dB variation in noise floor levels on different boards. We're trying to understand if this bit toggling is indicating any sort of issue with the calibration process that could lead to unit-to-unit variation in performance.
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