I'm trying to design power saving IoT module. Intending to install ada8235 and ada4691 just because they have shutdown. ada8235 specifies SDN, while ada4691 SD. Wish you to specify how to tie SD of ada4691 for the the normal operation.
In datasheet of ada4691 page 16 is devoted to the issue of shutdown. In the electrical characteristics section, the allowable logic levels are indicated.
Do you have any special requirements for the shutdown mode that are not specified in the datasheet?
with 4691 I saw it, and can't get the exact logical status of SHUTDOWN. internally CMOS inverter is installed....so high logic level to SD means device operating normally? yes I think so. and need concrete validation by your side. 8235 specifies SDN. I'm confused with mixed notation. Kindly validate it..