Hello!
On ADS131E04 datasheet, in the "Power-up sequencing" section on page 27, it is stated that "Before device power-up, all digital and analog inputs must be low. At power-up, these signals should remain low until the power supplies have stabilized."
This can be done for some signals, but is quite difficult for others; I do not use RESET and PWDN, for example, and then I should pull them up to VDD, but this would violate the requirement. Moreover, in the part demonstration kit I see there are pull-up resistors on these signals and on CS, too.
When I looked at the requirements first, I tried to pull down all signals (even CS and DRDY, which are active low) but now I am a little confused. What should I do?
Thanks in advance.
Regards,
Stefano Infante