Hi,
I have a question regarding the SAADC timing parameters.
I could not find an official specification for the SAADC power-up time (t_PWRUP). While measuring it on my device, I consistently observed approximately 10 µs, whereas 3 µs is mentioned in the Designing Low-Power Bluetooth LE Products course here.
Could you please confirm the expected/guaranteed value of t_PWRUP and whether it varies by device family or SAADC configuration?
In addition, when using burst mode, I observed an extra delay of approximately 325 ns per sub-sample on top of the documented t_ACQ and t_CONV timings. In other words, the total burst timing appears to be:
(t_ACQ + t_CONV + ~325 ns) × 2^OVERSAMPLE
Is there any documented sub-sample overhead in burst mode, and if so, could you provide the expected value?
Thanks!