HiI have a question about ADA4691-4.When the shutdown mode is not used, is the terminal open and it is not a problem?Please tell me because it was not mentioned in the data sheet.
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.
It is well known that digital inputs and analog inputs should never be floating.
See page 16 in the ADA4691 data sheet:
This was an exercise…
the ADA4691-2 looks nice for your application.
Apologies for the delay of response. According to our product experts, we had previous questions asking about the leakage current back into the ADA4691 output when it is in a shutdown mode. They gathered the data which shows that during the…
Have you taken a look at page 16 of the datasheet? This section describes how the shutdown operation of ADA4691-2 operates.
Looking at Figure 58, a rough estimate would be less than 400us.
I'm looking for the drive capabilities of the 'A2' op-amp in the AD8295. Ideally a figure showing the output voltage swing vs. output current. Something similar to figures 20 and 24 in the ADA4691 datasheet.
More specifically I would…
I'm surprised it is doing anything.
-- You need at least 5V across the part to wake it up
-- It is not RR input; you need to stay at least 1.5V away from either rail.
Try an ADA4084-2 or an ADA4528-2
For the LMC662,, you could also look at:
Which op amp? The OP281 rev D, page 3 d.s. says 95 kHz gbw on 3V??
The tool will let you pick other op amps. But if the op amp won't work, it won't let you
pick it. Try the ADA4666-2, ADA4528-2, ADA4528-1, ADA4691-2. All are less than