Hi!
I wanna make a "portable" device using ads1299 (bipolar supply).
Although, I couldn't find much info about its current consumption, but in ADS1298 page I noticed there is a 2.5 mA supply current (Typ) for AVDD.
In the ADS1299 datasheet it says the maximum input current (Continuous) is 10mA, so I assume the device works below that.
I was thinking of using a main battery of 9V to get it done:
9V >> 5V (L7805) >> +- 2,5V (TLE2426)
In FAQ section I found this:
He says he used a TLE2426 to get the +- 2,5V. Although it can output 20-40mA maximum (which would make the system work).
I realize that using an Alkaline 9v battery (PP3) wouldn't be the best, but as long as the system can work for as little as 10 minutes with a fresh battery, that's fine. I just want to evaluate if this configuration is going to work or not.
Thanks!